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;CHAPTER; NAME

! 10~ ,

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The diameter of a circle is given. Find the radius.

1. d = 8 ft 2. d = 9 cm 3. d = 2.1 m

The radius of 08 is given. Find the diameter of OB.

4. r = 21 em 5. r = 33 ft 6. r = 2.9 m

Using the diagram below, match the notation with the term that best describes it.

7. Chord A. CB ~

8. Point of tangency B. BG

9. Common Interior Tangent C. DE 10. Common Exterior Tangent D.A

11. Center E. EB

12. Radius F. AB 13. Diameter G.DE

14. Secant H. C

In Exercises 15-20, A8 and MN are diameters of OE. Find the indicated measure.

15. mAC ~

16. mNB

17. mLBEN M I----'-'-~----l N

18. mACN

19. mMAC

20. mMCB

_ DATE

1.

2.

3.

4.

5.

6.

7.

8.

9. I 10. 1 11. "

12.

13.

14.

15.

16.

17.

18.

19.

20.

I Geometry Copyright © McDougallittelllnc. All rights reserved. Chapter 10 Resource Book

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33) Write the equation of the circle with a center at (-3, 8) and a diameter of 14.

33) Graph the equation (y + 3)2 + (x _1)2 = 9

CHAPTER

10 CONTINUED

Find the measure of the angle or arc.

21. 22. 23. 24.

Find the indicated measure.

25. mL 1 26. mMLK 27. mAB

M

Find the measure of L 1.

29. 30.1220

J ~.~'-----

1050

"

Find the value of x.

31. 32.

'-+--

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NAME . _ DATE

21.

22.

23.

24.

25.

26.

27.

28.

29.

_

_

_

_

_

_

_

30. _

31. _

32.

y

I ,

X

G~Olrnetry

ChaDt€r 10 ~~vi~w

1. In the diagram, Be is a radius of circle C. Determine whether AB is tangent to circle C. State yes or no and show supporting work.

2'. In the diagram, AB is tangent to circle Cat point B. Find the radius r.

3.

4.

5.

The points K and M are points of tangency. Find the value(s) of x.'

M

The points K and M are points of tangency. Find the value(s) of x

K

M

The points K and M ,9re points of tangency. Find the value(s) of x

6. Two diameters of circle N are RT and PS. Find the given arc measure if m TP =4r. Draw a picture to help!

mST= _ mP5= _ mRTP= _ mSTR~ _

7. If there is enough information, find the measure of mAC.

I--~~~-~~--~---_._----~------~------~-----l

8. If there is enough information, find the measure of chord QS.

Q

9. If there is enough information, find the measure of chord HJ.

10. Find mLA and mLC.

11. Find mLA and mLC.

12. Find the value of the variables.

13. Find the value of the variables.

r Find the indicated measure in circle 0, given mCD = 85° and mBE = 97~ .

14. mLABC= 15. mLCED=

16. mLBDE= 17. mLCBD=

18. mLABD= 19. mLBCE=

20. mAD= 21. mABC=

... -~'-----------------;------------------l

22. Find the value of x.

f-----,--~.._-------------------------------_j 24. Find the value of x.

E·,'

25. Find the value of x.

26. The diameter of a circle is 14 feet. Exactly how for fl~om the center of the circle is a chord that is 6 feet?

27. Find the value of x.

28. Find the value of x.

29. Find the value of x.

2x-1

W.//4

.J x--2

! x+ 7

30. Find the value of x.

31.

BnsketbaIt The:x.s shaw the PQSitions of two basketball ~, 5 · j\ ~tearmnates reiative to the circular tLkey~ on a basketball ft· . uft

f \. court The player 'outside the key pasws the ball to the .... player on the key. To the nearest tenth ofa foot~ how /

r '\ \

long is the pass? I \ i 11ft \ \ ..

'"..==:.,l.\o•.•.._.,.' •.. ', ..•.-~. . - . . ~ . 2 2

32. Given a circle: (x+Z) +(Y-4) = 25

a) What is the center? b) What is the length of the radius? _

c) If (-2, y) is on thiS circle, what is/are the exact coordinate(s) of y? . _

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