Question

The height of rectangular room is 8m and it's perimeter of the floor is 20m .Find it's area of four walls

Answer 1

Answer:

160m^2

Step-by-step explanation:

Area of four walls = 2 ( l+b ) * h

Since 2 (l+b) is 20 m (perimeter)

Therefore area of 4 walls = 20*8

=160m^2