1.
Find the circumference. Round the answer to the nearest tenth.
A.
282.6 in.
B.
14.1 in.
C.
25.1 in.
D.
28.3 in.
Hint
2.
What is the circumference of a circle with radius 2.1 cm? Use >
3.14.
A.
6.594 cm
B.
8.724 cm
C.
13.188 cm
D.
12.69 cm
Hint
3.
The diameter of a circle is 9 feet. What is the measure of its circumference? Round to the nearest tenth.
A.
4.5 ft
B.
14.1 ft
C.
63.6 ft
D.
28.3 ft
Hint
4.
Which is an accurate description of pi,
?
A.
the ratio between the circumference and diameter of any circle
B.
the ratio between the circumference and radius of any circle
C.
the ratio between the area and radius of any circle
D.
the ratio between the area and diameter of any circle
Hint
5.
Which statement is true for any circle if
C
= circumference,
d
= diameter, and
r
= radius?
A.
B.
C.
=
Cd
D.
= 2
d
Hint