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Question

X and Y are the centers of 2 circles on a square as shown in the figure. What is the area of the shaded portion? (Take π=3.14)
271256_105efaca8e68450e91e3feff777d794b.png

A
25.12cm2
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B
28.26cm2
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C
71.74cm2
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D
88cm2
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Solution

The correct option is C 71.74cm2
Each side of the square = Diameter of the larger circle + Radius of smaller circle
=8cm+2cm=10cm
Area of shaded portion = Area of the square Area of semicircle with centre Y Area of quarter circle with centre X
=100(12×3.14×16)(14×3.14×4)
=10025.123.14
=71.74cm2

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