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Worksheet by Kuta Software LLC
Kuta Software - Infinite Geometry Name___________________________________
Period____Date________________
Circumference and Area of Circles
Find the area of each. Use your calculator's value of
π
ππ
π. Round your answer to the nearest tenth.
1)
12 in
2)
14 km
3)
9 m
4)
11 cm
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
π
ππ
π. Round your answer to the
nearest tenth.
9)
8 mi
10)
8.3 yd
-1-
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Worksheet by Kuta Software LLC
11)
4.2 yd
12)
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
π
ππ
π. 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
π
ππ
π. Round your answer to the nearest
tenth.
21) area = 201.1 in² 22) area = 78.5 ft²
Find the circumference of each circle.
23) area = 64
π mi² 24) area = 16
π in²
Find the area of each.
25) circumference = 6
π yd 26) circumference = 22
π in
Critical thinking question:
27) Find the radius of a circle so that its area
and circumference have the same value.
-2-
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Worksheet by Kuta Software LLC
Kuta Software - Infinite Geometry Name___________________________________
Period____Date________________
Circumference and Area of Circles
Find the area of each. Use your calculator's value of
π
ππ
π. Round your answer to the nearest tenth.
1)
12 in
452.4 in²
2)
14 km
615.8 km²
3)
9 m
254.5 m²
4)
11 cm
380.1 cm²
5) radius = 2.6 in
21.2 in²
6) radius = 34.1 in
3653.1 in²
7) radius = 13.2 km
547.4 km²
8) radius = 29.9 km
2808.6 km²
Find the circumference of each circle. Use your calculator's value of
π
ππ
π. Round your answer to the
nearest tenth.
9)
8 mi
50.3 mi
10)
8.3 yd
52.2 yd
-1-
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Worksheet by Kuta Software LLC
11)
4.2 yd
26.4 yd
12)
6.2 mi
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
π
ππ
π. 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
π
ππ
π. Round your answer to the nearest
tenth.
21) area = 201.1 in²
16 in
22) area = 78.5 ft²
10 ft
Find the circumference of each circle.
23) area = 64
π mi²
16
π mi
24) area = 16
π in²
8
π in
Find the area of each.
25) circumference = 6
π yd
9
π yd²
26) circumference = 22
π in
121
π in²
Critical thinking question:
27) Find the radius of a circle so that its area
and circumference have the same value.
r = 2
-2-
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