The following figure consists of a rectangle and semi circle. Find its area perimeter
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L = 8cm
B = 28cm
area of rectangle = 2(L+B)
= 2 (8+28)
=2 × 36
= 72 CM
perimeter of semicircle is half of the circumference,
circumference = 2πr/2
= 2×3.14×14 / 2 (d = 28 , r = 14)
= 87.92 / 2
= 43.96
now, perimeter of rectangle + perimeter of semicircle
= 72 + 43.96
= 115.96
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