Multiple Choice Identify the
choice that best completes the statement or answers the question.
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Convert each scale factor to a decimal.
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1.
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Convert each scale factor to a fraction.
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2.
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0.4
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Scale a rectangle that has length 9 inches and width 17 inches by each scale
factor. Determine the dimensions of the scaled rectangle.
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3.
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6
a. | 54 in. by 102 in. | c. | 9 in. by 17 in. | b. | 1.5 in. by 2.8 in. | d. | 15 in. by 23
in. |
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4.
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70%
a. | 6.3 in. by 11.9 in. | c. | 9 in. by 17 in. | b. | 12.9 in. by 24.3 in. | d. | 9.7 in. by 17.7
in. |
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5.
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a. | 6.75 in. by 12.75 in. | c. | 9 in. by 17 in. | b. | 12 in. by 22.7 in. | d. | 9.75 in. by 17.75
in. |
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Find the scale factor you can apply to figure A to get figure B.
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6.
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Two rectangles are scaled copies of each other. The ratio of the length of
the scaled rectangle to the length of the original rectange is . The
width of the original rectangle is given. Find the width of the scaled rectangle.
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7.
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10
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The length of a side of a scaled square is given. The scale factor is
3. Find the length of a side of the original square.
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8.
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3
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9.
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A blueprint for a house has a scale of 1 : 35. A wall in the blueprint is 3 in.
What is the length of the actual wall?
a. | 105 feet | b. | 8.75 feet | c. | 8.75 in. | d. | 1,260
feet |
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From the given description, decide whether the original figure or
the dilated figure is closer to the center of dilation.
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10.
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The center of dilation is outside the original figure. You dilate
the original figure by the scale factor 6.
a. | original figure | b. | dilated figure |
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11.
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The center of dilation is inside the original figure. You dilate the original
figure by the scale factor  .
a. | original figure | b. | dilated figure |
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Use the figure for the following exercises. .
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12.
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When AD = 8, DB = 32, and AE = 10, what is
EC?
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13.
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When AE = 6, EC = 24, and CB = 32, what is
ED?
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14.
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When AD = 5, CB = 24, and DE = 8, what is AB?
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15.
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When AD = 6, AE = 9, and AB = 21, what is AC?
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16.
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When DE = 3, BC = 7.5, and AC = 10.5, what is
EC?
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17.
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Find the indicated lenth.  
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18.
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Find the indicated lenth.  
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19.
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Use the given lengths to determine whether  . 
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20.
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Use the given lengths to determine whether  . 
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21.
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You increase the width of a rectangle by the factor 4. You decrease the length
by the factor 6. What is the ratio of the area of the new rectangle to the area of the original
rectangle?
a. |  | c. | 24 | b. |  | d. | 6 |
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22.
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You increase the height of a triangle by the factor 5. The length of the base
stays the same. What is the ratio of the area of the new triangle to the area of the original
triangle? Explain.
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23.
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You increase the lengths of the sides of a cube by the factor 2. What is the
ratio of the volume of the new cube to that of the original?
a. | 8 | c. | 2 | b. | 4 | d. |  |
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24.
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Find the value of x. The diagram is not to scale. 
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25.
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The folding chair has different settings that change the angles formed by its
parts. Suppose  is 26 and  is 70.
Find  . The diagram is not to scale. 
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26.
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Find the value of the variable. The diagram is not to scale.
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27.
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Find the values of x, y, and z. The diagram is not to
scale. 
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28.
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Find the length of the midsegment. The diagram is not to scale. 
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Complete each statement. 

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29.
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30.
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31.
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The scale on a map is 1 cm : 6 km. If two cities are 13 cm apart on the map,
what is the actual distance between the cities?
a. | 13 km | b. | 468 km | c. | 2.17 km | d. | 78
km |
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32.
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A scale model of a car is 10 in. long. The actual car is 15 ft long. What is the
scale of the model?
a. | 1 in. : 1.5 in. | c. | 1 in. : 24 in. | b. | 1 in. : 18 ft | d. | 1 in. : 18 in. |
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The figures are similar. Give the ratio of the perimeters of the first figure
to the second. The figures are not drawn to scale.
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33.
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34.
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a. | 5 : 6 | c. | 6 : 6 | b. | 6 : 7 | d. | 5 : 7 |
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35.
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The widths of two similar rectangles are 4 yd and 6 yd. What is the ratio of the
perimeters? Of the areas?
a. | 3 : 4 | c. | 2 : 3 | b. | 2 : 4 | d. | 3 : 3 |
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36.
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The area of a regular octagon is 35 cm  . What
is the area of a regular octagon with sides three times as large?
a. | 315 cm | b. | 225 cm | c. | 175 cm | d. | 105 cm |
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37.
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The radii of two circles are 2 and 8. What is the ratio of the areas?
a. | 1 : 16 | c. | 1 : 8 | b. | 1 : 4 | d. | 1 : 2 |
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38.
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Find the area of a regular hexagon with a side length 3 and apothem 7.
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39.
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Find the area of a regular pentagon with a side length 6 and apothem 10.
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40.
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Find the area of a regular octagon with a side length 3 and apothem 7.
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41.
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A square with side lengths of 6 cm circumscribes a circle. The area of the
circle is 28.27 cm2. Find the circumference of the circle.
a. | 18.85 cm | c. | 2.36 cm | b. | 9.42 cm | d. | 169.65 cm |
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Find the area of the circle. Leave your answer in terms of .
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42.
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a. | 256 m2 | b. | 8
m2 | c. | 512 m2 | d. | 4096
m2 |
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43.
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a. | 100 m2 | b. | 400
m2 | c. | 200 m2 | d. | 43
m2 |
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44.
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 ft.
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45.
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Find the area of the figure to the nearest tenth. 
a. | 74.2 in.2 | b. | 8.2 in.2 | c. | 148.4
in.2 | d. | 23.6 in.2 |
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46.
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Find the area of a sector with a central angle of 110° and a diameter of 6
cm. Round to the nearest tenth.
a. | 8.6 cm2 | b. | 3.7 cm2 | c. | 34.5 cm2 | d. | 1.4
cm2 |
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Find the circumference. Leave your answer in terms of .
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47.
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48.
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49.
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The circumference of a circle is 36  cm. Find the diameter, the
radius, and the length of an arc of 200°.
a. | 36 cm; 18 cm; 20 cm | c. | 18 cm; 36 cm; 10
cm | b. | 72 cm; 18 cm; 190 cm | d. | 36 cm; 72 cm; 10
cm |
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50.
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A team in science class placed a chalk mark on the side of a wheel and rolled
the wheel in a straight line until the chalk mark returned to the same position. The team then
measured the distance the wheel had rolled and found it to be 15 cm. What is the area of the wheel?
Use 3.14 for  .
a. | 35.8 cm2 | b. | 11.8 cm2 | c. | 17.9 cm2 | d. | 71.7
cm2 |
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51.
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Find the length of arc XPY. Leave your answer in terms of  . 
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Find the value of x. If necessary, round your answer to the nearest
tenth. The figure is not drawn to scale.
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52.
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53.
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Circle O, , , FG = 40, RS =
37, OP = 19 
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54.
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a. | 12 ft | b. | 36 ft | c. | 6 ft | d. | 3
ft |
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55.
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56.
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57.
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The figure consists of a chord, a secant and a tangent to the circle. Find the
value of x. Round to the nearest hundredth, if necessary. 
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58.
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AB = 20, BC = 6, and CD = 8 
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59.
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Find the value of x.  111 
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60.
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Find the value of x.  12 
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61.
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 and  are
diameters. Find the measure of arc ZWX. (The figure is not drawn to scale.) 
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62.
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Find the measure of BAC. (The figure is not drawn to
scale.) 
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63.
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Find m BAC. (The figure is not drawn to
scale.) 
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64.
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m(arc DE) = 96 and m(arc BC) = 67. Find m A. (The figure is not drawn to scale.) 
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65.
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Find m D for m B = 50.
(The figure is not drawn to scale.) 
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66.
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m S = 36, m(arc RS) = 118, and
 is tangent to the circle at R. Find
m U. (The figure is not drawn to
scale.) 
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In the figure, and are
tangent to circle O and bisects . The
figure is not drawn to scale.

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67.
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For  = 46, find  .
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68.
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For  = 50, find  .
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69.
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Find AB. Round to the nearest tenth if necessary.

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70.
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Find the probability that a point chosen at random will lie in the shaded
area. 
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71.
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Lenny’s favorite radio station has this schedule: news 13 min, commercials
2 min, music 45 min. If Lenny chooses a time of day at random to turn on the radio to his favorite
station, what is the probability that the news will be on?
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72.
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A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the
spinner once. Find P(not even).
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Find the geometric mean of the pair of numbers.
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73.
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175 and 7
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74.
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5 and 6
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Find the arithmetic mean of the pair of numbers.
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75.
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225 and 4
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76.
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9 and 10
a. |  | b. | 9.5 | c. | 90 | d. | 19 |
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Find the length of the missing segment.
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77.
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a. | 12 | b. | 27 | c. |  | d. |  |
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78.
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79.
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a. |  | b. | 168 | c. |  | d. | 34 |
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80.
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Find the area of an equilateral triangle with side 13 in.
a. | 73.2 in.2 | c. | 39 in.2 | b. | 6.2 in.2 | d. | 292.7
in.2 |
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81.
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Find the area of an isosceles triangle with sides: 14 mm, 11 mm, 11 mm.
a. | 59.4 mm2 | c. | 36 mm2 | b. | 6 mm2 | d. | 237.6
mm2 |
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82.
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The area of a square garden is 50 m2. How long is the
diagonal?
a. | 25 m | b. | 100 m | c. | m | d. | 10
m |
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Find the value of the variable(s). If your answer is not an integer, leave it
in simplest radical form.
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83.
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84.
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 Not drawn to scale
a. | x = , y =  | c. | x = , y = 10 | b. | x = 10,
y =  | d. | x = 30, y =  |
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85.
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a. | x = 17, y =  | c. | x = , y = 17 | b. | x = 34, y =  | d. | x = , y = 34 |
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86.
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87.
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The length of the hypotenuse of a 30°-60°-90° triangle is 4. Find
the perimeter.
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88.
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Use  to find the value of cos A.

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89.
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Write the ratios for sin A and cos A. 
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90.
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For  , find the sine, cosine, and tangent of  . 
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91.
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Write the tangent ratios for  and  . 
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92.
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Write the tangent ratios for  and  . 
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Find the value of x. Round to the nearest tenth.
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93.
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94.
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95.
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96.
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97.
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a. | 26.2 m | b. | 10.5 m | c. | 8.6 m | d. | 12.3
m |
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98.
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a. | 7.6 ft | b. | 10.6 ft | c. | 15.3 ft | d. | 7.9
ft |
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99.
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a. | 7.1 cm | b. | 13.1 cm | c. | 9.2 cm | d. | 8.4
cm |
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100.
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A park in a subdivision is triangular-shaped. Two adjacent sides of the park are
573 feet and 536 feet. The angle between the sides is 58  To the nearest unit, find
the area of the park in square yards.
a. | 32,557 yd | b. | 14,470 yd | c. | 28,940 yd | d. | 43,410 yd |
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Find the area of the triangle. Give the answer to the nearest tenth. The
drawing may not be to scale.
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101.
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a. | 126.9 cm | b. | 63.4 cm | c. | 23.1 cm | d. | 185.5 cm |
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102.
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Use the Law of Cosines. Find b to the nearest tenth. 
a. | 102.2 | b. | 62.4 | c. | 132.9 | d. | 63.2 |
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103.
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Use the Law of Cosines. Find  to the nearest tenth of a
degree. 
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104.
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In  , j = 9 in., k = 5 in., and  = 43°. Find  .
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Find the volume of the solid. Round to the nearest tenth if
necessary.
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105.
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a. | 226.1 m3 | b. | 37.7 m3 | c. | 113 m3 | d. | 150.7
m3 |
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106.
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a. | 24 in.3 | b. | 96 in.3 | c. | 48 in.3 | d. | 16
in.3 |
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107.
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a. | 3052.1 cm3 | b. | 1716.8 cm3 | c. | 339.1 cm3 | d. | 9156.2
cm3 |
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108.
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a. | 565 m | b. | 1,188 m | c. | 1,018 m | d. | 1,696 m |
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109.
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 Not drawn to
scale
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110.
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 Not drawn to
scale
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111.
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 Not drawn to
scale
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112.
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 Not drawn to
scale
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113.
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a. | 180 ft | b. | 60 ft | c. | 120 ft | d. | 135 ft |
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114.
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a. | 1,767 cm | b. | 442 cm | c. | 236 cm | d. | 14,137 cm |
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115.
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A cylinder has a volume of 19 cm3. If the radius is doubled, what is
the volume of the new cylinder?
a. | 304 cm3 | b. | 38 cm3 | c. | 76 cm3 | d. | 152
cm3 |
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116.
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A large aquarium is 8 m by 6 m by 5 m. What is the difference in the volume of
the aquarium if its dimensions are doubled?
a. | 240 m3 | b. | 1680 m3 | c. | 360 m3 | d. | 480
m3 |
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117.
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A sphere has radius 5 cm. Find the volume to the nearest hundredth.
a. | 130.9 cm3 | b. | 104.72 cm3 | c. | 314.16
cm3 | d. | 523.6 cm3 |
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118.
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A rectangular prism has a volume of 120 cm3. Its length is 5 cm and
its width is 8 cm. What is the prism’s height?
a. | 40 cm | c. | 24 cm | b. | 3 cm | d. | 15 cm |
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119.
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The volume of the cone is 425 m  . Find the radius of
the base of the cone to the nearest whole unit. 
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Find the surface area of the sphere. Use 3.14 for and round to the nearest tenth.
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120.
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a. | 1,808.6 in. | b. | 452.2 in. | c. | 150.7 in. | d. | 602.9 in. |
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121.
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a. | 4,534.2 m | b. | 283.4 m | c. | 1,133.5 m | d. | 377.8 m |
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122.
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Find the image of O(–1, –3) after two reflections, first in
the line y = –2, and then in the line x = –2.
a. | (–3, –1) | b. | (–3, –5) | c. | (–1, –3) | d. | (–2,
–2) |
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123.
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Find the coordinates of the midpoint of the segment whose endpoints are
H(8, 2) and K(6, 10).
a. | (7, 6) | b. | (1, 4) | c. | (14, 12) | d. | (2,
8) |
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124.
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M(9, 8) is the midpoint of  The coordinates of S
are (10, 10). What are the coordinates of R?
a. | (9.5, 9) | b. | (11, 12) | c. | (18, 16) | d. | (8,
6) |
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125.
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Find the midpoint of  . 
a. | (3, 1) | b. | (1, 1) | c. | (10, 4) | d. | (4,
4) |
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126.
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Find the distance between (3, 4) and (4, –6). If necessary, round to the
nearest tenth.
a. | 10 units | b. | 101 units | c. | 7.3 units | d. | 53
units |
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127.
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The Frostburg-Truth bus travels from Frostburg Mall through the City Center to
Sojourner Truth Park. The mall is 3 miles west and 2 miles south of the City Center. Truth Park is 4
miles east and 5 miles north of the Center. How far is it from Truth Park to the Mall to the nearest
tenth of a mile?
a. | 9.9 miles | b. | 3.6 miles | c. | 3.2 miles | d. | 6.4
miles |
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128.
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Find the perimeter of  with vertices A(0,
–6), B(4, –6), and C(0, –3). 
a. | 32 units | b. | 14 units | c. | 12 units | d. | 7
units |
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Are the graphs of the lines in the pair parallel? Explain.
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129.
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y = x + 8 –2 x + 12 y
= –11
a. | Yes, since the slope are the same and the y-intercepts are the
same. | b. | No, since the y-intercepts are different. | c. | Yes, since the slope
are the same and the y-intercepts are different. | d. | No, since the slopes
are different. |
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130.
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y = 5x + 6 –18x + 3y = –54
a. | No, since the slopes are different. | b. | Yes, since the slopes are the same and the
y-intercepts are different. | c. | No, since the y-intercepts are
different. | d. | Yes, since the slope are the same and the y-intercepts are the
same. |
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Write the equation of a line that is perpendicular to the given line and that
passes through the given point.
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131.
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4x – 12y = 2; (10, –1)
a. | y = x + 29 | c. | y = x + 29 | b. | y = x +
29 | d. | y = x + 7 |
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132.
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Find the slope of a line that is perpendicular to  . P(–5, –3), Q(–2, 8)
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133.
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Describe the location of the point in coordinate space. (–7, 6,
–4)
a. | From the origin, move 7 units back, 6 units left, and 4 units
down. | b. | From the origin, move 7 units back, 6 units right, and 4 units
down. | c. | From the origin, move 7 units back, 6 units right, and 4 units
up. | d. | From the origin, move 7 units forward, 6 units right, and 4 units
down. |
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134.
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A cube is sitting at the origin with side length 10. What is the length of a
diagonal of the cube?
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135.
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A rectangular prism has side lengths 3, 6, and 10. What is the length of a
diagonal of the prism?
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136.
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If A = (–1, 2) and B = (2, –1), find the head of a
vector that starts at the origin, has the same direction as  and is the
same length as  .
a. | (3, –3) | c. | (3, 1) | b. | (1, –3) | d. | (1, 1) |
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137.
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If A = (–1, 5) and B = (3, 3), find the head of a vector
that starts at the origin, has the same direction as  and is 2 times as long as
 .
a. | (8, –4) | c. | (2, 8) | b. | (4, –2) | d. | (4, 16) |
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138.
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If A = (–4, –5) and B = (3, –3), find the head
of a vector that starts at (–1, 1), has the same direction as  and is 6
times as long as  .
a. | (41, 13) | c. | (–2, –7) | b. | (42, 12) | d. | (–7,
–47) |
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139.
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If A = (–4, 1) and B = (4, 4), find the head of a vector
that starts at (1, –5), has the same direction as  and is the same length as
 .
a. | (9, –2) | c. | (0, 5) | b. | (8, 3) | d. | (1, 0) |
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140.
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Givent that G = (1, –5) and H = (–1, –4), find a
point that is collinear to G and H.
a. | (9, –9) | c. | (1, –14) | b. | (1, 31) | d. | (1, –9) |
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Determine if and are
parallel in the same direction, parallel in the opposite direction, or not
parallel.
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141.
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A = (–3, –4), B = (4, –1), C = (3,
–2), D = (9, 8)
a. | not parallel | c. | parallel in the opposite direction | b. | parallel in the same
direction |
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142.
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Find the coordinates of a point B, given A = (–4, –1), so
that  .
a. | (–1, 4) | c. | (–1, 1) | b. | (4, 1) | d. | (4, 4) |
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