A cuboid is 12 cm long, 9 cm broad and 8 cm high. Its total surface area is
Given: Length = 12 cm
Breadth = 9 cm
Height = 8 cm
Total surface area of a cuboid = 2[(Length ×Breadth) + (Breadth ×Height) + (Height ×Length)]
Total surface area = 2[(12×9) + (9×8) + (8×12)] cm2 = 2(108+72+96) cm2
= 2(276) cm2 = 552 cm2