The total surface area of a cylinder of radius 'r' and height 'h' is _____.
A
2πrh
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B
2πr(h+r)
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C
2πrh+πr2
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D
2πr2
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Solution
The correct option is B2πr(h+r) A cylinder has two circular faces, one at the top and other at the bottom, in addition to its curved region. Therefore, total surface area = Curved surface area + sum of areas of 2 circular faces =2πrh+2πr2 =2πr(h+r)