Total surface area of a cylinder of radius $r$ and height $h$ is _________

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Solution

The area of the curved surface of the cylinder which is contained between the two parallel circular bases. It is also stated as a lateral surface area. The formula for it is given by
Curved Surface Area (CSA) = $2 πrh$ square units
Total Surface Area of Cylinder
The total surface area of a cylinder is the sum of curved surafce area and the area of two circular bases.
$T S A = C u r v e d S u r f a c e A r e a + A r e a o f c i r c u l a r b a s e s$
$T S A = 2 πrh + 2 {πr}^{2} TSA = 2 πr (r + h)$
Hence, the answer is $2 πr (r + h)$

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