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2016-03-22T00:39:18+05:30

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I found the figure. 

Given:
2 shapes : square and circle
The circle is cut in half to form a semi-circle. The square is placed between the two semi-circle. Two semi-circles are the shaded part. 

I will find the area of the shaded part which forms 1 circle.

Area of a circle = π r²

Side of the square lawn serves as the diameter of the circle. Radius is half of the diameter. 

r = d/2 ⇒ 42meters ÷ 2 = 21 meters

Area of circle = 3.14 * (21m)²
A = 3.14 * 441m²
A = 1,384.74 m²

Area of the shaded parts is 1,384.74 square meters.
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