0
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Test 37 Chapter 9 Test Answers
Directions: Write answers in the spaces provided.
1. If A and Bare points on a circle 0, thenAB is best described as a_?_ of 00.
1.
{2)
2. A radius of a circle has one endpoint at _?_ and the other _?_.
2.
{2)
3."
{2)
4.
{3)
5.
{3)
6.
{3)
7.a.
{2)
b.
{3)
RS
3. If intersects 0P at point R and at no other point, then mLPRS = _?_. 4. If quadrilateral WXYZ is inscribed in 00, mLW = 45 and mLX = 110, then mLZ = _?_. 5. At 7 o'clock, the hands of a clock form an angle of measure_?_. 6. If two coplanar circles are internally tangent, then the total ·number of common external tangents that can be drawn is
_?_. 7. In 0R, miKL = 140. a. mLJRL = _?_ b. mLJKL = _?_ 8.
IfAB is a minor arc of 0Q, then_?_
<
m.AB
< _?_.
In 0 0, mLl = 40. Find each measure.
9.mAD 10. mLAOB 11. rWiB 12. mABb 13. mLC 14. mLBAO In 0P shown below, EF congruence. 15.
Questions 9-14
=:!
GH. Write the theorem that supports each
£F = @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
16. Ll
8.
{2)
9.
{3)
10.
{3)
11.
{3)
12.
{3)
13.
{3)
14.
{3)
15. (See question)
{3)
16. (See question)
{3)
= L2 - - - - - - - - - - - - - - - - - - - -
MH E\2_) Questions 15-16
· (continued)
RESOURCE BOOK for GEOMETRY Copyright © by Houghton Mifflin Company. All rights reserved.
59
-
18.
17.
PQ = 7; LP PR = _?_
= LR
OM= 29;MN
= 40;
OP = _?_
G
19.
20.
E
GJ F
z
mGH = 80; mLE = _?_
OJ
= OK = 4; WZ = 10;
XY=_?_ Find the value of x. x• a ~
21.
m• 2m•
.Z2.~ x•
-..........._
Answers
In Questions 17-20, 0 is the center of the circle.
23.
L
17.
(4)
18.
(4)
19.
(4)
20.
(4)
21.
(4)
22.
(4)
23.
(4)
24. (See proof)
(8)
25.
(4)
26.
(4)
27.
(5)
28.
(5)
80" 134°
.
so· 130°
')< Write a two-column proof. Given: Diameter RT .l SU Prove: ST = TU
T
X
In the circle show!l, XD is a tangent. 25. 26. 27. 28.
IfAY = 4.5, YC = 8, and BY= YF, then BF = _?_. If XF = 9 and XD = 15, then FB = _?_. IfXF = 10,XB = 27, andXE:EC = 1:2, thenXC = _?_. If 4, YF = 9, andAC = 12, thenAY = _?_.
D
BY=
Questions 25-28
