If two solid-hemisphere s of same base radius r are joined together along their bases , then curved surface area of this new solid is

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KollegeApply · Accepted Answer

Base radius of the hemisphere = r Since the two hemispheres are joined end to end, it becomes a complete sphere. Curved surface area of the new solid = total surface area of the sphere. \text { Curved surface area of the new solid } = 4 $\pi$ r^2

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