Question

A circular hut has a diameter of 10m Find The cost of a mat covering the floor of the hut at R18/m^2

Answer 1

floor area = (π * d^2) / 4

multiply area by unit price

Answer 2

radius = 5 m
area = pi r^2 = 3.14157 * 5 * 5 square meters
cost = area * 18 R
Whatever an R is :)