Question

The base of a room is a square of side 8m and its height is 5m .Find the area of 4 walls

Answer 1

base of room = one side of wall (length)
height (b)=5m
area of 1 wall =8*5=40 square meter
area of 4 walls =40*4=160 square meter

Answer 2

area of four walls = 2h(l+b)
=2x5(8+8)
= 10(16)
= 160 m^2