CH 10

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CH 10 CIRCLES
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1. Identify a diameter.
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2. Identify a common internal tangent.
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3. Identify a common external tangent.
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4. What is CD?
radius
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5. What is AD?
secant
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6. What is AB?
chord
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8. Find x.
22
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9. AD a diameter to Circle C. Find x.
6x 180
x 30
10
35
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125
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14. Find m AB.
40
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15. Find x.
89
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16. a) Find a.
a 50
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16. b) Find b.
b 25
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17. a) Find x.
x 105
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17. b) Find y.
y 100
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18. a) Find x.
x 48
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18. b) Find y.
y 42
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19. Find m?BAD.
90
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20. Find x.
9x 180
20
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21. Find m?AEB.
40
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22. Find m?1.
85
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23. Find m AB.
140
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24. Find m ACB.
220
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25. Find m ? 1.
95
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26. Find m ? 1.
32
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27. Find y.
2(5y 3) 8y
y 3
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28. Find x.
12(20) 10(x 10)
x 14
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29. Find x.
8(8) 5(x 5)
x 7.8
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34. Find the circumference of a circle with a
diameter of 16 inches.
50.27 inches
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35. Find the radius of a circle with a
circumference of 60 meters.
9.55 meters
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36. Find the length of AB.
13.1
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38. Find the area of a circle with a diameter of
16 inches.
201.1 inches2
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39. Find the diameter of a circle with an area
of 66.5 cm2.
9.2 cm
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40. Find the area of the shaded region.
36.1
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41. Find the length of radius in the circle if
the shaded region is 47.5 cm2.
8 cm
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Great Job!