Find the surface area of a rectangular parallelepiped with l = 3 cm, b = 2 cm, and h = 4 cm.
Show answer & explanation
Correct answer: A
Explanation
l = 3 cm, b = 2 cm, h = 4 cm
according to formula
Surface area = 2(lb + bh + hl)
2(3×2 + 2×4 + 4×3)
= 2(6 + 8 + 12)
= 2 × 26
= 52 cm²