A hemispherical depression is cut out from one face of a cubical block that the diameter 'l'of hemisphere is equal to the edge of the cube determine the suface area of remaining solid
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Surface area of remaining solid = SA of cube - Area of circle + CSA of hemisphere
= 6a2 - πr2 + 2πr2
= 6L2 + π(L/2)2
= (24L2 + πL2)/4
= (L2/4)(24 + π) sq. units
= 6a2 - πr2 + 2πr2
= 6L2 + π(L/2)2
= (24L2 + πL2)/4
= (L2/4)(24 + π) sq. units
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