A hemispherical tank is made up of an iron sheet 1 cm thick. If the inner radius is 1 m,then find the volume of the iron used to make the tank.

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Thickness of iron sheet: 1cmInner radius of tank (r): 1m or 100 cm.Volume of iron used to build the tank= (1/2) x (Outer volume of tank - Inner volume of tank.) Outer radius of tank (R) = (100+1) cm= 101cmOuter volume of tank = Similarly, inner volume = Therefore, (Outer volume) - (inner volume)...
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Thickness of iron sheet: 1cmInner radius of tank (r): 1m or 100 cm.Volume of iron used to build the tank= (1/2) x (Outer volume of tank - Inner volume of tank.) Outer radius of tank (R) = (100+1) cm= 101cmOuter volume of tank = Similarly, inner volume = Therefore, (Outer volume) - (inner volume) = = 12575.62 cc.Therefore, volume of iron used= (1/2)x 126975.62 cc= 63487.81 cc. read less
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