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1. |
The diameter of a circle is 7.5. Find the circumference to the nearest tenth. |
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A. |
16.8 |
B. |
35.4 |
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C. |
47.1 |
D. |
23.6 |
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Hint |
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2. |
 |
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 |
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A. |
90 |
B. |
115 |
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C. |
65 |
D. |
25 |
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Hint |
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3. |
 |
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 |
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A. |
20 |
B. |
7 |
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C. |
13 |
D. |
22 |
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Hint |
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4. |
In the figure, XZ = 12, UV = 8, and  is a diameter. Find the length of a radius of the circle. |
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A. |
 |
B. |
10 |
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C. |
12 |
D. |
8 |
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Hint |
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5. |
 |
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 |
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A. |
70 |
B. |
90 |
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C. |
35 |
D. |
290 |
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Hint |
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6. |
In the figure, the segment is ____ to the circle. |
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 |
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A. |
interior |
B. |
inscribed |
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C. |
tangent |
D. |
supplementary |
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Hint |
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7. |
 |
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 |
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A. |
40 |
B. |
220 |
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C. |
140 |
D. |
70 |
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Hint |
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8. |
Find  . |
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 |
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A. |
80 |
B. |
25 |
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C. |
100 |
D. |
105 |
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Hint |
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9. |
If the circumference of a circle is 56.5, find the radius to the nearest whole number. |
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A. |
16 |
B. |
89 |
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C. |
9 |
D. |
18 |
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Hint |
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10. |
In the figure, L and R lie on circle P. Is  LRP inscribed in circle P? |
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A. |
No; triangles cannot be inscribed. |
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B. |
Yes; LRP is completely contained in circle P. |
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C. |
Yes; P is the center of the circle and is a vertex of the triangle. |
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D. |
No; only two of the points lie on circle P. |
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Hint |
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11. |
What can you assume from the following figure? |
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A. |
 is a diameter of the circle. |
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B. |
m J + mGKI = 180. |
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C. |
GHK is isosceles. |
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D. |
H is the center of the circle. |
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Hint |
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12. |
In the figure,  and  are tangent to circle V at the points A and E, respectively, and X is the midpoint of  . If the radius of circle V is 5, AE = 8, and XD =  , find AD. |
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A. |
3 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
Find the value of z. |
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A. |
6.5 |
B. |
4 |
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C. |
12.25 |
D. |
1 |
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Hint |
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14. |
Find the value of x. |
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 |
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A. |
4 |
B. |
5 |
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C. |
3 |
D. |
2 |
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Hint |
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15. |
The center of the circle with equation (x + 4)2 + (y + 15) 2 = 49 has coordinates ________. |
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A. |
(4, 15) |
B. |
(-4, 15) |
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C. |
(-4, -15) |
D. |
(4, -15) |
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Hint |
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16. |
Find the diameter of the circle with equation (x + 8) 2 + (y - 9) 2 = 121. |
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A. |
22 |
B. |
17 |
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C. |
11 |
D. |
121 |
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Hint |
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