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Area of circle with radius OP is __ cm^2
Area of circle with radius AD is cm^2
Area of circle with radius BC is _ cm^2
Area of the shaded region is cm^2
Circumference of the circle with center B is __ cm

Give you answer as a completely simplified exact value in terms of pi

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akposevictor akposevictor · Answer 1 · 2022-02-10T11:09:36+01:00

Area of Circle having radius OP = 4 cm: 50.27 cm²

Area of Circle having radius AD = 1 cm: 3.14 cm²

Area of Circle having radius BC = 2 cm: 12.57 cm²

Area of the shaded region: 34.56 cm²

Circumference of the circle with center B: 12.57 cm

Area = πr²

Circumference = 2πr, where r = radius.

Area of Circle having radius OP = 4 cm:

Area = π(4)² = 50.27 cm²

Area of Circle having radius AD = 1 cm:

Area = π(1)² = 3.14 cm²

Area of Circle having radius BC = 2 cm:

Area = π(2)² = 12.57 cm²

Area of the shaded region:

Area = 50.27 - (3.14 + 12.57)

Area = 34.56 cm²

Circumference of the circle with center B, having radius of 2 cm:

Circumference = 2π(2) = 12.57 cm

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