Question

The area enclosed by a circular plot is 616m2

. Find the diameter of the plot. Also find the cost

of fencing it at the rate of Rs 7 per metre.

Answer 1

Answer:

diameter= 28 m

Step-by-step explanation:

Area of circle= πr²

616= 22/7 x r²

r² = 616 x 7/22

r²= 196

r= 14m

diameter= 28 m

Circumference= 2πr = 2 x 22/7 x 14 = 88 m

Cost of fencing= 88 x 7 =Rs.616