A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? Find the surface area of the solid.

Ncert solutions class 10 chapter 13-5

each side of cube is 7 cm.

So, the radius = 7/2 cm.

Surface area of solid=T.S.A of cube-Area of circle+ C.S.A of hemisphere







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