Question

The circumference of a circular field is
440 m. Find the cost of levelling the field
at the rate of 5 per sq. m.

Take pi =22/7

Firstly find it's area and then rate

cost of levelling is important
​

Answer 1

Step-by-step explanation:

circumference of circle = diametre × pi

440 = D × 22/7

440×7/22 = D

154 = D

radius = 77

area = pi×radius^2

area = 22/7×77^2

area = 22/7×5929

area = 183624

cost is 5 rupees per square meter

to find cost

183624×5

answer is 93170