passwella.
Menu

WAEC Mathematics 2011 Question 22

Question 22

Mensuration of Solids

The height of a cylinder is equal to its radius. If the volume is 0.216π m3, calculate the radius.

  1. A.0.46m
  2. B.0.60m
  3. C.0.87m
  4. D.1.00m
Show the answer and explanation

Answer: B (0.60m)

Explanation

V = πr2h = πr3 = 0.216π, so r3 = 0.216 and r = 0.6 m.