the area of the shaded region in given figer is (take π=3.14)
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In fig, find the area of the shaded region. (Use π=3.14)
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⇒ Radius of semi-circle (r)=
4
14−6
=
4
8
=2cm
⇒ Side of a small square 2r=2×2=4cm
⇒ Area of big square =(side)
2
=(14)
2
=196cm
2
⇒ Area of a small square =(side)
2
=(4)
2
=16cm
2
⇒ Area of 4 semicircle =4×
2
πr
2
=4×
2
3.14×(2)
2
=25.12cm
2
∴ Area of shaded region = Area of a big square - Area of a small square - Area of a 4 semicircle.
∴ Area of shaded region=(196−16−25.12)cm
2
=154.88cm
2
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