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1) 2) 3)

7) 8) 9)

4) 5) 6)

Area = Area = Area =

Area = Area = Area =

Area = Area = Area =

84 m

76 ft

90 in

44 c

m

58 m

Circle - Area

72 in

100 cm 50 m

60 ft

Example :

42 ft

Find the area of each circle. Round the answer to tenth decimal place. ( use π = 3.14 )

Area of a circle = πr2

Diameter = 42 ft

Area = πr2

= 3.14 x 21 x 21

Area = 1384.7 ft2

Radius (r) = 21 ft

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1) 2) 3)

7) 8) 9)

4) 5) 6)

Area = 4069.4 in2 Area = 7850 cm2 Area = 1962.5 m2

Area = 2826 ft2 Area = 5539 m2 Area = 4534.2 ft2

Area = 6358.5 in2 Area = 1519.8 cm2 Area = 2640.7 m2

84 m

76 ft

90 in

44 c

m

58 m

Answer Key

72 in

100 cm 50 m

60 ft

Example :

42 ft

Find the area of each circle. Round the answer to tenth decimal place. ( use π = 3.14 )

Area of a circle = πr2

Diameter = 42 ft

Area = πr2

= 3.14 x 21 x 21

Area = 1384.7 ft2

Radius (r) = 21 ft