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WAEC Mathematics 1996 Question 22

Question 22

Mensuration of Solids

Find, correct to 1 decimal place, the volume of cylinder of height 8cm and base radius 3cm [Take π = 3.142]

  1. A.503.0cm3
  2. B.300.0cm3
  3. C.250.0cm3
  4. D.226.2cm3
  5. E.150.9cm3
Show the answer and explanation

Answer: D (226.2cm3)

Explanation

V = πr2h = 3.142 × 9 × 8 = 226.224, which is 226.2 cm3 to 1 decimal place.