Question
A cylindrical tank has radius 3.5 m and height 4 m.
How many litres of water can it hold? (Take π = 22/7)Solution
ATQ, Volume = πr²h = (22/7) × 3.5 × 3.5 × 4 3.5 = 7/2 → r² = (7/2)² = 49/4 Volume = (22/7) × (49/4) × 4 = 22 × 7 = 154 m³ 1 m³ = 1000 litres → 154 × 1000 = 1,54,000 litres.
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