Question

Find the area of fourwalls of a room if its length 12m.,bredth 10m.,and height 7.5m

Answer 1

Answer:

area of cuboid = 2(lb+bh+hl)

area of room = 2((12×10)+(10×7.5)+(7.5×12))

=2 (120+75+90)

=2 (285)

=2×285

=570 answer