Question

The volume of a cylindrical vessel is 27720 cu. cm and its base radius is 21 cm. Find the
surface area of the cylindrical vessel.​

Answer 1

Answer:

2460 cm square

Step-by-step explanation:

Let the height of the cylindrical vessel be 'h' cm

W.K.T Volume = πr²h

On putting the values in the formula we get

27720=22/7 X21X21Xh

27720=1386/h

therefore h=27720/1386

                  =20 cm

C.S.A. = 2πrh

           =2 X 22/7 X 21 X 20

           =2 X 22/ X 3 X 20

           =2640 cm^2

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Now, we have to find the Curved surface area of the vessel

To find the volume of the vessel, we use the formula:-

✰ C.S.A. = 2πrh ✰

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