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प्रश्न
A hemispherical tank has inner radius of 2.8 m. Find its capacity in litres.
उत्तर
Radius of tank =2.8m
∴ Capacity `= 2/3×22/7×
(2.8)^3`
= `45.99m^3`
∴ Capacity in liters = 45994 liters`[1m^3=1000]`
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