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Which statement about any closed cylinder is TRUE?

Class 8Surface Area of a CylinderMensuration

AIts TSA exceeds its CSA by π $r^{2}$
BIts CSA and TSA are equal
CIts TSA exceeds its CSA by 2π $r^{2}$
DIts TSA is always double its CSA

Step-by-Step Solution

TSA = CSA + area of two circular ends = CSA + 2π

r^{2}

. It is double the CSA only in the special case

r = h

.

Answer: C) Its TSA exceeds its CSA by 2π

r^{2}

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