Question 134
The radius of a circular field is equal to the side of a square field whose perimeter is 784 feet. What is the area of the circular field?
Solution
Perimeter of square field = 784 ft.
Radius of circular field = Side of square field = $$\frac{784}{4}$$ = 196 ft.
Area of circular field = $$\pi r^2 = \frac{22}{7}\times196\times196 = 120736$$ sq ft
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