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WAEC Mathematics 2013 Question 18

Question 18

Mensuration of Solids

A cube and a cuboid have the same base area. The volume of the cube is 64 cm3 while that of the cuboid is 80 cm3. Find the height of the cuboid.

  1. A.2 cm
  2. B.3 cm
  3. C.5 cm
  4. D.6 cm
Show the answer and explanation

Answer: C (5 cm)

Explanation

The cube has side 4 cm, so the base area is 16 cm2. Cuboid height = 80 ÷ 16 = 5 cm.