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1. |
Express the ratio in simplest form.
number of shaded squares: total number of squares |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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2. |
Solve  |
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A. |
2.5 |
B. |
4 |
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C. |
3 |
D. |
3.5 |
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Hint |
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3. |
If two triangles are similar, ______. |
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A. |
then corresponding sides are congruent |
B. |
then only one pair of corresponding sides is congruent |
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C. |
then corresponding angles are congruent |
D. |
then only one pair of corresponding angles are congruent |
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Hint |
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4. |
If  ABC is similar to UVW, find the value of x. |
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A. |
41 |
B. |
39 |
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C. |
40 |
D. |
42 |
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Hint |
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5. |
A guy wire is attached to the top of a telephone pole and goes to the ground 8 feet from the base. When Jim stands under the guy wire so that his head touches it, he is 3 feet from where the wire goes into the ground. If Jim is 6 feet tall, how tall is the telephone pole? |
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A. |
24 feet |
B. |
12 feet |
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C. |
16 feet |
D. |
20 feet |
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Hint |
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6. |
Assume the triangles are similar. What is the value of x? |
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A. |
10 |
B. |
3.2 |
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C. |
20 |
D. |
5 |
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Hint |
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7. |
The figure is a scale drawing of the east side of a house. In the drawing, the side of each square represents 4 feet. Find the width and height of the door. |
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A. |
4 feet by 10 feet |
B. |
4 feet by 9 feet |
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C. |
4 feet by 12 feet |
D. |
4 feet by 8 feet |
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Hint |
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8. |
If the actual distance between two airports is 375 kilometers and the distance on a map is 8 centimeters, what is the scale for the map? |
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A. |
1:4,687.5 = 2:9,375 |
B. |
1:46,875 |
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C. |
1:4,687,500 |
D. |
1:468,750 |
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Hint |
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9. |
The process of enlarging or reducing an image is called a(n) |
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A. |
dilation |
B. |
image |
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C. |
illusion |
D. |
scale factor |
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Hint |
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10. |
The price of various size jars of spaghetti sauce are given in the table. Which size costs the least per ounce? |
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A. |
12 ounces |
B. |
26 ounces |
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C. |
20 ounces |
D. |
16 ounces |
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Hint |
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11. |
Mitchell is on a diet. The table shows his weight from the start of the diet. Find the rate of change in his weight from the third week to the seventh week. |
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A. |
-1 pound per week |
B. |
-1.4 pounds per week |
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C. |
-2 pounds per week |
D. |
-1.5 pounds per week |
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Hint |
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12. |
The table shows the value of a car as it gets older. Find the rate of change in value of the car from the third year to the fifth year. |
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A. |
-$2,500 per year |
B. |
-$1,250 per year |
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C. |
-$1,400 per year |
D. |
-$1,500 per year |
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Hint |
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13. |
Find the slope of the line. |
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A. |
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B. |
4 |
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C. |
- |
D. |
-4 |
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Hint |
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14. |
The points given in the table lie on a line. Find the slope of the line. |
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A. |
- |
B. |
 |
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C. |
- |
D. |
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Hint |
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15. |
Which pair of ratios forms a proportion? |
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A. |
 ,  |
B. |
 ,  |
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C. |
 ,  |
D. |
 ,  |
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Hint |
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16. |
A logo is 15 centimeters wide. If the logo is to be dilated by a factor of  , find the width of the logo. |
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A. |
8.57 centimeters |
B. |
22.35 centimeters |
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C. |
26.25 centimeters |
D. |
28.75 centimeters |
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Hint |
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