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Question -

A hemi spherical tank is made up of an ironsheet 1cm thick. If the inner radius is 1 m, then find the volume of the ironused to make the tank. (Assume π = 22/7)



Answer -

Inner Radius of thetank, (r ) = 1m

Outer Radius (R ) =1.01m

Volume of the ironused in the tank = (2/3) π(R3– r3)

Put values,

Volume of the ironused in the hemispherical tank = (2/3)×(22/7)×(1.013– 13)= 0.06348

So, volume of the ironused in the hemispherical tank is 0.06348 m3.

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