Question

Find the area of four walls of room (Assume there are no doors or windows) if it's length 12m..., breadth 10m and height 7.5m. answer

Answer 1

area of Wall= lateral surface area of cuboid
=2h*(l+b)
=2*7.5*(10+12)
= 330 m^2

Answer 2

length=12m,breadth=10mand height=7.5m
area of four walls=2*h(l+b)
2*7.5(13+10)
15*23
330