11-Circumference and Area of Circles
Kuta Software - Infinite Geometry
Name___________________________________
Circumference and Area of Circles
Date________________ Period____
Find the area of each. Use your calculator's value of ¦Ð . Round your answer to the nearest tenth.
1)
2)
12 in
14 km
3)
4)
11 cm
9m
5) radius = 2.6 in
6) radius = 34.1 in
7) radius = 13.2 km
8) radius = 29.9 km
Find the circumference of each circle. Use your calculator's value of ¦Ð . Round your answer to the
nearest tenth.
9)
10)
8.3 yd
8 mi
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Worksheet by Kuta Software LLC
11)
12)
6.2 mi
4.2 yd
13) radius = 5.2 ft
14) radius = 11.1 ft
15) radius = 9.5 in
16) radius = 9.3 in
Find the radius of each circle. Use your calculator's value of ¦Ð . Round your answer to the nearest
tenth.
17) circumference = 62.8 mi
18) circumference = 69.1 yd
19) circumference = 12.6 yd
20) circumference = 25.1 ft
Find the diameter of each circle. Use your calculator's value of ¦Ð . Round your answer to the nearest
tenth.
21) area = 201.1 in?
22) area = 78.5 ft?
Find the circumference of each circle.
23) area = 64¦Ð mi?
24) area = 16¦Ð in?
Find the area of each.
25) circumference = 6¦Ð yd
26) circumference = 22¦Ð in
Critical thinking question:
27) Find the radius of a circle so that its area
and circumference have the same value.
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Worksheet by Kuta Software LLC
Kuta Software - Infinite Geometry
Name___________________________________
Circumference and Area of Circles
Date________________ Period____
Find the area of each. Use your calculator's value of ¦Ð . Round your answer to the nearest tenth.
1)
2)
12 in
14 km
452.4 in?
615.8 km?
3)
4)
11 cm
9m
380.1 cm?
254.5 m?
5) radius = 2.6 in
6) radius = 34.1 in
21.2 in?
3653.1 in?
7) radius = 13.2 km
8) radius = 29.9 km
547.4 km?
2808.6 km?
Find the circumference of each circle. Use your calculator's value of ¦Ð . Round your answer to the
nearest tenth.
9)
10)
8.3 yd
8 mi
50.3 mi
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52.2 yd
-1-
Worksheet by Kuta Software LLC
11)
12)
6.2 mi
4.2 yd
26.4 yd
13) radius = 5.2 ft
39 mi
14) radius = 11.1 ft
32.7 ft
15) radius = 9.5 in
69.7 ft
16) radius = 9.3 in
59.7 in
58.4 in
Find the radius of each circle. Use your calculator's value of ¦Ð . Round your answer to the nearest
tenth.
17) circumference = 62.8 mi
18) circumference = 69.1 yd
10 mi
19) circumference = 12.6 yd
11 yd
20) circumference = 25.1 ft
2 yd
4 ft
Find the diameter of each circle. Use your calculator's value of ¦Ð . Round your answer to the nearest
tenth.
21) area = 201.1 in?
22) area = 78.5 ft?
16 in
10 ft
Find the circumference of each circle.
23) area = 64¦Ð mi?
24) area = 16¦Ð in?
16¦Ð mi
8¦Ð in
Find the area of each.
25) circumference = 6¦Ð yd
26) circumference = 22¦Ð in
9¦Ð yd?
121¦Ð in?
Critical thinking question:
27) Find the radius of a circle so that its area
and circumference have the same value.
r=2
Create your own worksheets like this one with Infinite Geometry. Free trial available at
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Worksheet by Kuta Software LLC
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