dougygamin dougygamin

25-01-2018
Mathematics

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A cylinder has a height of 11 inches and radius of 9 inches. Find the surface area of the cylinder in terms of π.

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jdoe0001 jdoe0001

25-01-2018

[tex]\bf \textit{surface area of a cylinder}\\\\ s=2\pi r(h+r)\quad \begin{cases} r=radius\\ h=height\\ ------\\ h=11\\ r=9 \end{cases}\implies s=2\pi (9)(11+9) \\\\\\ s=18\pi (20)\implies s=360\pi [/tex]

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