Find the lateral surface area and total surface area of a cuboid of length 80 cm, breadth 40 cm and height 20 cm.
Given,
Length of a cuboid =80 cm
Breadth of cuboid = 40 cm
Height of cuboid = 20 cm
So, lateral surface area of cuboid = 2(l+b)h = 2(80+40)×20 = 4800 cm2
Total surface area of cuboid = 2(lb+bh+hl) = 2(80×40+40×20+20×80) = 11200 cm2