Total surface area of an hollow sphere and hemisphere?
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TSA OF SPHERE - 4 PIE R^2
TSA OF HEMISPHERE- 3 PIE R^2
TSA OF HEMISPHERE- 3 PIE R^2
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total surface area of hemisphere is 3pir² that is 2pir²+pir²where r is the radius,the total surface area of hollow sphere is 4pir².
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