1.
The diameter of a circle is 8. What is the radius?
A.
16
B.
4
C.
D.
Hint
2.
Find the radius of a circle with circumference
.
A.
B.
16
C.
8
D.
4
Hint
3.
Find the area of a circle with a radius of 15 millimeters. Round to the nearest tenth.
A.
1413.7 mm
2
B.
94.2 mm
2
C.
706.9 mm
2
D.
225.0 mm
2
Hint
4.
If the circumference of a circle is 56.5, find the radius to the nearest whole number.
A.
16
B.
9
C.
89
D.
18
Hint
5.
What is the area of the shaded region? Round the answer to the nearest tenth.
A.
182.2 cm
2
B.
201.1 cm
2
C.
172.8 cm
2
D.
31.4 cm
2
Hint