Question

To fence a circular garden, the total cost is Rs. 52800 at the cost of Rs.50 per metre. Find
the radius of the circular garden.

Answer 1

Total cost of fencing = Rs. 52800

cost of fencing = Rs.50 per meter

Total length of fence = 52800/50 = 1056

Thus perimeter of circular garden = 1056 m

If the radius is R

2πR = 1056

⇒R = 1056/2π

⇒R = (1056×7)/(2×22)

⇒R = 168 m

Radius is 168 m.

Answer 2

Answer:

The total cost of fence = Rs.52800

Cost if fence per metre= Rs. 50 per metre

Total length of fence = 52800/50 = 1056

Thus the perimeter of the ground = 1056 m

if the radius =R

2 pi R =1056

R= 1056/2pi

R= 1056×7/ 2×22

R=168

The answer is 168

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