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Question

The area in cm2 of the shaded region if the radius of the smaller circles are 1 cm each is 6.28 cm2.

i



A

True

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B

False

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Solution

The correct option is B

False


From figure, area equal to one full circle exists in the semi-circle.

Area of larger semi-circle = 3.14×222 = 6.28 cm2

Area of smaller semi-circles = 2 x 3.14×122 = 3.14 cm2

Area of shaded portion = 3.14 cm2


Mathematics

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