Question
The diameter of a circular field is equal to the side of
a square field. If the total cost of fencing the circular field is Rs. 1210 at the rate of Rs.11/m, what is the perimeter of the square fields?Solution
Let the diameter of circular field is 2r, and radius = r Acoording to question, 2 x (22/7) x r = 1210/11 2 x (22/7) x r = 110 r = 17.5 m Diameter =2r = 35 m Perimeter of square field = 4 x 35 = 140 m
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