. A playground in the form of a rectangle having semicircles on the shorter sides as shown in fig. 2. Find its area when the length of the rectangular portion is 80 m and the breadth is 42 m
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Total Area play ground = 4746 m²
Step-by-step explanation:
A playground in the form of a rectangle having semicircles on the shorter sides
Length = 80 m
Breadth = 42 m
Area of rectangular Part = 80 * 42 = 3360 m²
Shorter side = 42 m
two Semi circle on two shorter side = one circle on Shorter side
Diameter of circle = 42 m
Radius = 42/2 = 21 m
Area of circle = π * Radius²
using π = 22/7
= (22/7) * 21²
= 1386 m²
Total Area = 3360 + 1386 = 4746 m²
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