1.
A.
circumference
B.
radius
C.
center
D.
diameter
Hint
2.
A.
24.6
B.
7.8
C.
12.3
D.
1.6
Hint
3.
A.
5
B.
4
C.
22
D.
9
Hint
4.
In the figure,
XZ
= 12,
UV
= 8, and
is a diameter. Find the length of a radius of the circle.
A.
B.
8
C.
10
D.
12
Hint
5.
A.
60
B.
30
C.
45
D.
90
Hint
6.
Find the value of
y
to the nearest tenth.
A.
8.0
B.
7.5
C.
7.2
D.
7.6
Hint
7.
Find
x
.
A.
110
B.
80
C.
100
D.
90
Hint
8.
The center of the circle with equation (
x
+ 4)
2
+ (
y
+ 15)
2
= 49 has coordinates ________.
A.
(-4, -15)
B.
(4, -15)
C.
(-4, 15)
D.
(4, 15)
Hint
9.
Which is an equation of the circle with center at (11, -19) and diameter 12?
A.
(
x
- 11)
2
+ (
y
+ 19)
2
= 144
B.
(
x
- 11)
2
+ (
y
+ 19)
2
= 36
C.
(
x
+ 11)
2
+ (
y
- 19)
2
.= 144
D.
(
x
+ 11)
2
+ (
y
- 19)
2
= 36
Hint
10.
In
J
,
is a diameter with
JL
= 18 and
m
= 140. Find the length of
.
A.
44.0
B.
12.6
C.
113.1
D.
6.3
Hint