Find the surface area of a brick with dimensions 12 cm × 6 cm × 5 cm.
Show answer & explanation
Correct answer: C
Explanation
Given:
l = 12 cm, b = 6 cm, h = 5 cm
Surface area of cuboid = 2(lb + bh + hl)
2(12 × 6 + 6 × 5 + 5 × 12)
= 2(72 + 30 + 60)
= 2 × 162
= 324 cm2