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area of rectangle = l×b = 14×7 = 98cm^2
area of semicircle with diameter DC
= 1/2 × πr^2 = 1/2×22/7×7×7 = 77cm^2
area of shaded region inside the rectangle
= area of rectangle - area of semicircle(DC)
= 98 - 77 = 21cm^2
area of two semicircles at the edge of rectangle = 2×1/2×πr^2 = 22/7×7/2×7/2 = 38.5cm^2
area of shaded region = 21 + 38.5 = 59.5cm^2
area of semicircle with diameter DC
= 1/2 × πr^2 = 1/2×22/7×7×7 = 77cm^2
area of shaded region inside the rectangle
= area of rectangle - area of semicircle(DC)
= 98 - 77 = 21cm^2
area of two semicircles at the edge of rectangle = 2×1/2×πr^2 = 22/7×7/2×7/2 = 38.5cm^2
area of shaded region = 21 + 38.5 = 59.5cm^2
Janadeen:
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