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1. |
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A. |
center |
B. |
radius |
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C. |
circumference |
D. |
diameter |
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Hint |
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2. |
In circle H,  and GI = 15. Find HK and  |
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A. |
15; 90 |
B. |
7.5; 180 |
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C. |
7.5; 90 |
D. |
15; 180 |
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Hint |
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3. |
 |
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 |
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A. |
19 |
B. |
11 |
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C. |
 |
D. |
60 |
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Hint |
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4. |
Find an equation of the circle that has a diameter with endpoints at
(6, 10) and (-2, 4). |
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A. |
(x + 2)2 + (y - 4)2 = 100 |
B. |
(x - 6)2 + (y - 10)2 = 100 |
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C. |
(x - 2)2 + (y - 7)2 = 25 |
D. |
(x - 4)2 + (y - 3)2 = 53 |
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Hint |
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5. |
Find an equation of the circle passing through A(2, 4), B(-2, 6), and
O(0,0). |
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A. |
(x + 1)2 + (y - 3)2 = 10 |
B. |
x2 + y2 = 40 |
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C. |
(x - 3)2 + (y + 6)2 = 32 |
D. |
(x - 2)2 + (y - 4)2 = 20 |
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Hint |
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6. |
In the figure, ABCD is a square and AC = 22. Find the circumference of the circle to the nearest tenth. |
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A. |
48.9 |
B. |
24.4 |
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C. |
69.1 |
D. |
34.6 |
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Hint |
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7. |
 |
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 |
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A. |
6.6 |
B. |
5.6 |
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C. |
11.2 |
D. |
13.2 |
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Hint |
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8. |
In the figure,  , and  . If MP = 7, then PQ = ____. |
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A. |
14 |
B. |
24 |
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C. |
7 |
D. |
25 |
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Hint |
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9. |
In the figure, L and R lie on circle P. Is  LRP inscribed in circle P? |
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A. |
Yes; LRP is completely contained in circle P. |
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B. |
Yes; P is the center of the circle and is a vertex of the triangle. |
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C. |
No; only two of the points lie on circle P. |
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D. |
No; triangles cannot be inscribed. |
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Hint |
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10. |
Find x. |
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 |
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A. |
100 |
B. |
80 |
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C. |
90 |
D. |
110 |
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Hint |
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11. |
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. |
 |
B. |
 |
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C. |
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D. |
3 |
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Hint |
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12. |
 |
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A. |
55 |
B. |
70 |
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C. |
110 |
D. |
125 |
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Hint |
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13. |
Find m NAL. |
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A. |
21 |
B. |
150 |
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C. |
78 |
D. |
96 |
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Hint |
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14. |
Find the value of x. |
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A. |
2 |
B. |
3 |
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C. |
4 |
D. |
5 |
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Hint |
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15. |
Find the value of x. |
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 |
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A. |
7.5 |
B. |
12 |
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C. |
3 |
D. |
6 |
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Hint |
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16. |
In  J,  is a diameter with JL = 18 and m = 140. Find the length of  . |
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A. |
6.3 |
B. |
113.1 |
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C. |
44.0 |
D. |
12.6 |
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Hint |
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