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PracticeFor use with pages 650-658
Use Pto draw the described part of the circle.
2. Draw a tangent ray and label it CD.
c.
3. Draw a secant and label it EF. 4. Draw a chord and label it
GH.
Use the diagram to determine if the statement is true or
false.
5. The distance between the centers of the circles isequal to
the length of the diameter of each circle.
6. The lines y = 0 andy = 4 represent all thecolin-non tangents
of the two circles.
P'At- ;7. The circles intersect at the point (6, 3).
y]!Iilil!l!_
t .... T) i--
LLLLI i Li__i_I_,_L_L_Lfl_
TiZ-U
8. Suppose the two circles shown are inscribed in a rectangle.
The perimeter of the rectangle is 36 units.
Draw two circles that have the given number of common
tangents.
9. 3 10. 2 11. 0
In Exercises 12-17, BCis a radius of Cand ABis tangent to C.Find
the value of x.
12. B 96 A 13. B 14. B
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15. 16. B 56 A
32
,4
17. B
The points Kand Mare points of tangency. Find the value(s) of
x.
18. K 19. K 20.
M M
21= Swimming Pool You are standing 36 feetfrom a circular
swilmning pool. Thedistance from you to a point of tangencyon the
pool is 48 feet as shown. What isthe radius of the swimming
pool?
22. Space Shuffle Suppose a space shuttleisorbiting about 180
miles above Earth.What is the distance d from the shuttle tothe
horizon? The radius of Earth is about4000 miles. Round your answer
to thenearest tenth.
48 ft d,,j8o mi
:,, 12-!$.+ wq.
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LESSON
10.2PracticeFor use widz paes 659-#83
has a measure of 90 in GR. Find the length of PO.
19. P
Q
0
Find the indicated arc measure.
21. mAC = ig''= 22. mACB = 2J" 23. mDAB =
A
B
A
B
Tell whether the given arcs are congruent.
32. JK and QR o,,vT"--% ..---.. /%,/
33. AB and CD -
M
P
R
C" " " D
B
34. E_ and GH ol"r 35. STV and UVT t,T
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PracticeFor use with pages 859-863
Aiq.a. 'lz.,s
in OF, determine whether the given arc is a minor arc, major
arc,or semicircle. A B
i. A8 2."
I'tNb I',A ! Nt>lz-C
3 EAC 4. ACDD
5. CAD 6. dEB"
AUz-
7. BAE 8. DEC
\ Nt: Iq/x. elz.
in the figure, PRand QSare diameters of QU. Find the measure of
thea
f Pindicated arc.
9. mPQ 10. mST
,)z." .)
11. mTPS 12. toRT
;.'r(=," I1(=,"R
,5'
13. mRQS 14. mQR
15. ' mPQS 16. m TQR
Z.Z.Z." 7A.t*
17. raPS 18. mPTR
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Pr a ct i ce AN Due Thursday, March 19ill]k] For use with pages
864-b70
Find the measure of the given arc or chord.
1. mBC = 12." 2. mLM = =
0
6. mKLM = I::
6
1420
Find the value of x.
7. F
3x+ 1E
2x+ 7G
8. 3x- 11
x+9 C
91 Q R
9x-'7:_ L_T )x+
5
s
.=lO
10. 6X-- 5
V13 + 4x
7-
11. K
12 x*-'-"
12-- i
4L
7x- 10
)3x+ 6
12. V 14x- 9
9x+ 21Y W
X
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LESSON
10.3PracticeFor use with pages 4-d70
In Exercises 13-16, determine whether P/;'is a diameter of the
circle.
13. p 14. R
(o He, o He,
5' R P
S
15.
S
Find the value(s) of the variable. P, Q, and R are points of
tangency.
17. 18. O 4 S
S
19.
r--= 2... 67 r.= $ K=I2
4x+7 S
6x 9
C" R