Question

the rope required to measure the diameter of a circular pond is 90m shorter than measuring the circumference.Find the diameter of the pond

Answer 1

Explanation:

Circumference = pi * d

pi*d - 90 = d <====== given solve for d

pi *d -d =90

d (pi - 1 ) =90

d = 90/(pi-1) = 42 m This is the rope length