Find the area of shaded region, Mathematics

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Find the area of shaded region, if the side of square is 28cm and radius of the sector is ½ the length of side of square. (Ans:1708cm)

Ans: Area of shaded region is

2 ( 270/360 ) Π x 14 x 14 + 28 x 28

2 x 3/4 x 22/7 x 14 x14 + 784

924 + 784 = 1708 cm²

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