Question

the volume of cylindrical vessal is 27720 cu. cm and its base radiusnis 21 cm find the curved surface area of the cylindrical vessal​

Answer 1

:Given,

Volume of the cylindrical vessel is 27720 cm^3.

Base radius= 21 cm

We know that

Volume of cylinder is πr^2h

π(21) ^2 h=27720

22/7×21×21×h=27720

66×21×h=27720

h=27720÷(66×21)

h=27720÷1386

h=20.

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