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The height of a conical vessel is 3.5 cm. If its capacity is 3.3 litres of milk. Find the diameter of its base.

We have

Height of conical vessel = 3.5 cm

Volume = 3.3 litre = 3300 cm^{3}

= 1/3πr^{2}h = 3300

=r^{2} = 3300×3×7 / 22×3.5 = 900

= r =√900 = 30 cm

Hence diameter of its base = 2× radius = 2×30 = 60 cm

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