1.
is a diameter. Find
.
A.
180
B.
270
C.
90
D.
360
Hint
2.
In circle H,
and
GI
= 15. Find
HK
and
A.
15; 90
B.
15; 180
C.
7.5; 180
D.
7.5; 90
Hint
3.
What can you assume from the following figure?
A.
GHK
is isosceles.
B.
H
is the center of the circle.
C.
is a diameter of the circle.
D.
m
J
+
m
GKI
= 180.
Hint
4.
If
is a diameter of the circle,
MR
= 12, and the circle has radius 10, then find
NM
.
A.
8
B.
6.6
C.
4
D.
16
Hint
5.
Find
x
.
A.
110
B.
90
C.
100
D.
80
Hint