Name: _______________________
Circles – Circles Assessment Practice
If the radius of a circle is 12 cm, what is the
30 diameter?
A 6 π cm
B 24 π cm
Date: _______
Class: Pre-Algebra
A circle has a radius of 2.6 centimeters. What
35 is the circumference, in centimeters, of the
circle?
C 6 cm
D 24 cm
A
B
C
D
If the diameter of a circle is 14 inches, what is
31 the radius?
A 7 π in.
B 28 π in.
32
2.6 π cm
6.76 π cm
5.2 π cm
13.52 π cm
C 7 in.
D 28 in.
If the circumference of a circle is doubled,
how does the radius of the circle change?
A
B
C
D
Sheet # 10-03
What is the area, in square centimeters, of a
36 circle with a diameter of 12 centimeters?
The radius does not change.
The radius becomes half as long.
The radius becomes four times as long.
The radius becomes twice as long.
A
B
C
D
12 π sq cm
24 π sq cm
36 π sq cm
144 π sq cm
A circle has a circumference that measures
33 14 π yards. What is the radius, in yards, of the
circle?
A
B
C
D
What is the circumference of a circle with a
37 radius of 13 inches?
14
7
4
2
A
B
C
D
530.93 in
81.68 in
40.84 in
26 in.
The circumference of the
34 circle is 62.8 centimeters.
What is the best estimate
for the length of the
radius of the circle?
A
B
C
D
20 centimeters
10 centimeters
9 centimeters
19 centimeters
38
An above ground swimming pool is 18 feet in
diameter. How does the pool’s diameter d
compare to its circumference C?
A
B
C
D
1
C
2
d ≈ 2C
1
d≈ C
3
d ≈ 3C
d≈
The circumference of a circle is 158.45 yards.
39 What is the diameter of the circle rounded to
The radius of a circular fountain is 15 feet.
43 What is the circumference of the fountain, to
the nearest hundredth?
A
B
C
D
A
B
C
D
3.14 yds
25.22 yds
50.44 yds
100.87 yds
What is the area of a circle with a radius of 18
40 cm?
A
B
C
D
the nearest tenth?
1017.9 sq cm
56.5 sq cm
254.5 sq cm
324 sq cm
What is the area of this
circular tablecloth, to the
nearest square inch?
41
23.6 ft
47.1 ft
94.2 ft
706.5 ft
What is the circumference of
this circle, to the nearest
tenth?
44
A
B
C
D
15.7 cm
31.4 cm
78.5 cm
314.0 cm
Lucinda is trimming the edge of a circular
45 tablecloth. The tablecloth has a diameter of 7
feet. How much trim does Lucinda need, to
the nearest foot?
A
B
C
D
61,575 sq cm
15,394 sq cm
880 sq cm
440 sq cm
Ernest is putting a fence around a circular
42 vegetable garden. The garden has a diameter
of 70 feet. How much fence does Ernest need,
to the nearest foot?
A
B
C
D
440 ft
220 ft
110 ft
55 ft
A
B
C
D
44 ft
22 ft
11 ft
6 ft
The new city park will have a large center
46 area paved with brick. This area will be a
circle with a diameter of 100 feet. Find the
area of this circle to the nearest square foot.
A
B
C
D
34,415 sq ft
7853 sq ft
7854 sq ft
31,416 sq ft