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 . Round your answer to the nearest tenth.
1)
2)
12 in
14 km
3)
9 m
5) radius = 2.6 in
4)
11 cm
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 . Round your answer to the nearest tenth.
9)
10)
8.3 yd
8 mi
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-1-
Worksheet by Kuta Software LLC
11)
12)
4.2 yd
6.2 mi
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 . 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 . 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 mi?
24) area = 16 in?
Find the area of each. 25) circumference = 6 yd
26) circumference = 22 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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-2-
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 . Round your answer to the nearest tenth.
1)
2)
12 in
452.4 in?
3)
14 km
615.8 km?
4)
11 cm
9 m
254.5 m? 5) radius = 2.6 in
21.2 in?
380.1 cm?
6) radius = 34.1 in 3653.1 in?
7) radius = 13.2 km 547.4 km?
8) radius = 29.9 km 2808.6 km?
Find the circumference of each circle. Use your calculator's value of . Round your answer to the nearest tenth.
9)
10)
8.3 yd
8 mi
50.3 mi
52.2 yd
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-1-
Worksheet by Kuta Software LLC
11)
12)
4.2 yd
6.2 mi
26.4 yd
39 mi
13) radius = 5.2 ft 32.7 ft
14) radius = 11.1 ft 69.7 ft
15) radius = 9.5 in 59.7 in
16) radius = 9.3 in 58.4 in
Find the radius of each circle. Use your calculator's value of . Round your answer to the nearest tenth.
17) circumference = 62.8 mi 10 mi
18) circumference = 69.1 yd 11 yd
19) circumference = 12.6 yd 2 yd
20) circumference = 25.1 ft 4 ft
Find the diameter of each circle. Use your calculator's value of . Round your answer to the nearest tenth.
21) area = 201.1 in? 16 in
22) area = 78.5 ft? 10 ft
Find the circumference of each circle.
23) area = 64 mi? 16 mi
24) area = 16 in? 8 in
Find the area of each.
25) circumference = 6 yd 9 yd?
26) circumference = 22 in 121 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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