Question

70. In the figure ABCD is a square with side 14cm.
ABC and BQC are semi circulars.
Find the area of the shaded region.​

Answer 1

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By the way, you haven't given the figure That's why, i may be wrong.

Answer:

side of sq.,a=14cm

radius of semicircles,r=7cm

Area of sq.,a²=(14)²=196cm²

Area of one semicricle,πr²/2 =(22/7)×(7)²×(1/2)

After cancelling 2 and 7:

Area of 2 semicircles,πr²=(22)×7=154cm²

Area of Shaded region=Area of Sq.–Area of 2 semicircles

=196–154=42cm²

Therefore, Area of Shaded region is 42cm²