The curved surface area of a cylinder of radius r and height h is:

2πrh +π

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2πrh +2π

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πrh

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2πrh

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Solution

The correct option is D
2πrh

The curved surface area is defined as the area of only the curved surface, leaving the circular top and base.
Total Surface Area- It is the area of the curved surface as well as the bases.
Consider a cylinder having a height 'h' and base radius 'r'. Curved surface area of a cylinder will be 2πrh.

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2 π r h

r

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2 π r (h + r)

State True or False .
The total surface area of a cylinder of radius 'r' and height 'h' is $2 π r (h + r)$ .

\frac{1}{3} {πr}^{2} h

{πr}^{2} h

πr (h + r)

πrh

Total surface area of a solid cylinder of height 'h' and radius 'r', which is open from the top is $2 π r (h + r)$ .

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