Name: _______________________
Circles –Finding Area and Circumference
1
A circle with center at point O
is shown to the right.
Which line segment is half the
length of the diameter QM?
A
B
2
3
C
D
ON
PM
4
QP
OL
A bicycle wheel has
spokes for support. Each
spoke extends from the
center of the wheel to the
rim. Which method can
be used to find the
circumference of the
bicycle wheel?
A
Multiply the diameter by
B
Divide the diameter by
C
Multiply the radius by

D
Multiply the radius by

Date: _______
Class: Pre-Algebra
 and by 2
Sheet # 08-02
Use the circle below to answer parts A – D.
PART A
Find the circumference in
terms of  .
PART C
Find the area in terms of
Answer: _________ m
PART B
Find the circumference to the
nearest hundredth.
Answer: _________ sq m
PART D
Find the area to the nearest
hundredth.
Answer: _________ m
Answer: _________ sq m
.

and by 2.
Use the circle below to answer parts A – D.
PART A
Find the circumference in
terms of  .
PART C
Find the area in terms of
5
Use the circle below to answer parts A – D.
.
Answer: _______ yds
PART B
Find the circumference to the
nearest tenth.
Answer: _______ sq yds
PART D
Find the area to the nearest
tenth.
Answer: _______ yds
Answer: _______ sq yds
PART A
Find the circumference in
terms of  .
PART C
Find the area in terms of
Answer: _________ mi
PART B
Find the circumference to the
nearest mile.
Answer: _________ sq. mi
PART D
Find the area to the nearest
mile.
Answer: _________ mi
Answer: _________ sq. mi
.
6
7
8
If the radius of a circle is 10 cm, what is the
diameter?
A 20  cm
C 20 cm
B 5  cm
D 5 cm
A
B
C
D
If the diameter of a circle is 16 inches, what is
the radius?
A 8  in.
C 4 in.
B 4  in.
D 8 in.
A circle has a radius of 2.6 centimeters. What
is the circumference, in centimeters, of the
circle?
A
B
C
D
9
What is the area of a circle with a radius of 18
12 cm?
A
B
C
D
What is the circumference of a circle with a
radius of 13 inches?
A
B
C
D
530.93 in
81.68 in
40.84 in
26 in.
What is the area, in square centimeters, of a
A
B
C
D
The radius of a circular fountain is 15 feet.
the nearest tenth?
23.6 ft
47.1 ft
94.2 ft
706.5 ft
A
B
C
D
15.7 cm
31.4 cm
78.5 cm
314.0 cm
12  sq cm
24  sq cm
36  sq cm
144  sq cm
This diagram represents a
small stage in the shape of
a semicircle.
What is the area, in
square yards, of the stage?
15
What is the circumference of
this circle, to the nearest
tenth?
11
61,575 sq cm
15,394 sq cm
880 sq cm
440 sq cm
14 circle with a diameter of 12 centimeters?
10 What is the circumference of the fountain, to
A
B
C
D
What is the area of this
circular tablecloth, to the
nearest square inch?
13
2.6  cm
6.76  cm
5.2  cm
13.52  cm
1017.9 sq cm
56.5 sq cm
254.5 sq cm
324 sq cm
A
B
C
D
6.25  sq yds
25  sq yds
12.5  sq yds
50  sq yds