total length of walls = 5 + 5+ 4 + 4 = 18 meters
height = 2.5
area = height * length = 2.5 * 18 m^2
calculate the total area of the walls of a room 5m long 4m wide and 2.5m high
2 answers
A = 2(L*h) + 2(h*W)
A = 2(5*2.5) + 2(2.5*4) = 45 m^2.
A = 2(5*2.5) + 2(2.5*4) = 45 m^2.