Question

why tsa and csa of a sphere are same?

Answer 1

This is a very simple question which can be answered with logic. We know that (TSA) is the total surface area and in a sphere we have only one surface which is the whole curved area. Next we know that (CSA) is the curved surface area and as the sphere has only one surface area that too curved the formula for the (TSA) and (CSA) of a sphere are same .