I wants to build a pier to the centre of a circular lake the pond takes up an area of 2000m squared the pier is purchased in metre sections and costs £54.99 per metre find the total cost of the pier.

Answer 1

A = π r^2 = 2000

r^2 = 2000/314 = 636.94

r = 25.24 This is the radius and the length of the pier.

25.24m x 54.99/1m = 1387.8 B pounds = 1388 pounds