The length, breadth and height of a cuboid are 5 cm, 2 cm and 4 cm respectively. What is the total surface area of the cuboid?
Answer & explanation
Correct answer: option 4
We know that,
Total surface area of the cuboid = 2(lb + bh + hl)
We have,
L = 5 cm
b = 2 cm
h = 4 cm.
Total surface area of the cuboid = 2(5 × 2 + 2 × 4 + 4 × 5) = 2 (10 + 8 + 20) = 2 × 38 = 76 cm2