1.
Find the circumference of a circle whose diameter is 3.2 meters. Round to the nearest tenth.
A.
10.0 m
B.
8.0 m
C.
32.2 m
D.
5.0 m
Hint
2.
The radius of a circle measures 6 feet. What is the measure of its circumference? Round to the nearest tenth.
A.
113 ft
B.
18.8 ft
C.
37.7 ft
D.
12 ft
Hint
3.
Which statement is true for any circle if
C
= circumference,
d
= diameter, and
r
= radius?
A.
B.
C.
D.
Hint
4.
Which is an accurate description of pi,
?
A.
the ratio between the area and radius of any circle
B.
the ratio between the area and diameter of any circle
C.
the ratio between the circumference and diameter of any circle
D.
the ratio between the circumference and radius of any circle
Hint
5.
Which statement is true for any circle if
C
= circumference,
d
= diameter, and
r
= radius?
A.
= 2
d
B.
C.
D.
=
Cd
Hint