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A hemispherical vessel is made up of iron.if its outer diameter is 10cm and the thickness of the iron sheet used is 1cm then find the volume of iron

required to make a vessel


Considering the hemisphere is hollow.
outer diameter = 10 cm
outer radius = 5 cm
thickness = 1 cm
inner diameter = 10 -2 = 8 cm
inner radius = 4 cm
volume of the iron sheet required = (2/3)π[(5)³-(4)³] = 127.8 cm³
if we consider it closed then we have to take the base material also.
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