Math, asked by vandiNbsruchariv, 1 year ago

a hemispherical tank is made up of a metallic sheet 2cm thick. if the inner diameter is 196cm,then find the volume of the metal sheet used

Answers

Answered by abhi178
3
actually you see

thickness <<radius of hemispherical tank
so,
A=2pi.r^2
dV/dr=2pi.r^2
dV=2pi.r^2.dr
hence volume of volume of hemispherical tank=2pi.r^2dr
=2 x 22/7 x (98)^2 x (2)
= 120736 cm^2
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