Find the surface area of the cylinder in terms of pi

Kelvin Barsana asked Aug 7, 2023

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Kelvin Barsana asked Aug 7, 2023

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21 votes

Answer:
$522\pi$
sq. inches

Explanation:

formula for surface area of cylinder =
$2\pi r^(2) +2\pi rh$ , where r is radius of cylinder given 9 inches and h is height of the cylinder which is 20 inches.
putting the values we get,

$2\pi (9)^(2) +2\pi (9)(20)\\162\pi +360\pi \\=522\pi sq. inches$

Max Bileschi answered Aug 11, 2023

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