Lesson eLearning

A cylindrical tank has a radius of 3 m and a height of 5 m. How many litres of water can it hold when completely full? (1 m³ = 1000 litres)

hard 5 marks Class 6 · Science · Water
Answer
141370 litres

The correct answer is 141370 litres — Answer: 141370 litres.

Step-by-step solution

  1. Compute volume: V = π r² h.
  2. r² = 3² = 9.
  3. V = π × 9 × 5 = 45π m³.
  4. Approximate π ≈ 3.1416, so V ≈ 141.37 m³.
  5. Convert to litres: 141.37 × 1000 = 141370 litres.
  6. Answer: 141370 litres.
Common mistake: Not converting cubic metres to litres

Concept tested: Volume of cylinder

Published · How this solution was prepared and checked

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