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WorksheetsCircle Perimeter
Total questions: 24
Worksheet time: 6hrs 0mins
Name
Class
Date
1.
Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden edging that costs $0.75 per foot. About how much will the edging cost? Use 3.14 for π!
a)
$9.42
b)
$7.07
c)
$3.53
d)
$4.71
2.
The homeowners association wants to enclose the playground in a fence. How much fencing is needed?
Is this question finding the area or the circumference?
Is this question finding the area or the circumference?
a)
area
b)
circumference
c)
neither
3.
What is the area of the yellow?
a)
25π m2
b)
5π m2
c)
6.25π m2
d)
1.25π m2
4.
What is the radius of this circle?
a)
18 in
b)
36 in
c)
9 in
5.
A ball has a circumference of 9.42 cm. What is the diameter? Round to the nearest hundredth!
a)
29.59 cm
b)
4.71 cm
c)
3 cm
d)
18.84 cm
6.
A glass stained window is shaped like a semicircle. The bottom edge of the window is 36 inches long. How much colored glass would you need to cover the stained window? Round to the nearest hundredth.
a)
1017.36 in2
b)
508.68 in2
c)
56.52 in
d)
113.04 in
7.
What is the name of the line that goes from one end of the circle to the other and crosses the center point?
a)
Area
b)
Diameter
c)
Circumference
d)
Radius
8.
The radius is....
a)
a line that crosses through the center and touches each edge
b)
the center point of a circle
c)
a line from the center point to the edge of the circle
d)
an element in science
9.
Find the area of the circle.
a)
9π cm2
b)
36π cm2
c)
3π cm2
d)
2.25π cm2
10.
Find the Circumference.
a)
5π in
b)
10π in
c)
25π in
d)
2.5π in
11.
Find the perimeter of the figure. Use 3.14 for π!
a)
20.57 in.
b)
16 in.
c)
28.57 in.
d)
14.28 in.
12.
A circle has a circumference of 16π cm. Find the area of the circle.
a)
64π cm2
b)
256π cm2
c)
1024π cm2
d)
8π cm2
13.
What is the area of a quarter circle if the diameter is 14 cm?
a)
12.25π cm2
b)
49π cm2
c)
14π cm2
d)
3.5π cm2
14.
The circumference of a flower garden is 24π yd. What is the area of the flower garden in terms of pi?
a)
144π yd2
b)
576 π yd2
c)
452.16 yd2
d)
1,808.64 yd2
15.
If the area of circle is 100π. Find the radius of the circle.
a)
10π
b)
10
c)
50
d)
50π
16.
If the circumference of a circle is 28π, what is the radius of the circle?
a)
28
b)
14
c)
56
d)
196
17.
A circular swimming pool is 21 feet in diameter.
How many feet around is the pool? Round to the nearest hundredth!
How many feet around is the pool? Round to the nearest hundredth!
a)
32.99 ft
b)
42 ft
c)
65.97 ft
d)
131.95 ft
18.
If the circumference of a circle is 28π, what is the radius of the circle?
a)
28
b)
14
c)
56
d)
196
19.
What is the perimeter of this semi circle?
a)
8π cm
b)
4π cm
c)
2π cm
d)
16π cm
20.
What is the perimeter of this semi circle?
a)
3.6π m
b)
7.2π m
c)
14.4π
d)
12.96π
21.
What is the area of this semi-circle? Round to the nearest hundredth!
a)
50.27 cm2
b)
100.53 cm2
c)
201.06 cm2
d)
25.13 cm2
22.
If the word problem is asking you to find the space inside the circle, which formula should you use?
a)
r = d/2
b)
d = 2r
c)
C = πd
d)
A = πr²
23.
If the problem ask you to find the distance around a circle, which formula should you use?
a)
r = d/2
b)
d = 2r
c)
C = πd
d)
A = πr²
24.
A circle has a circumference of 9π in. What is the area?
a)
81π in2
b)
4.5π in2
c)
20.25π in2
d)
9π in2
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