Mathematics, 28.06.2019 01:00 dondre54
Find the height of a soup can if the area of the label is 302 square centimeters and the radius of the can is 4 centimeters
Answers: 1
![\bf \textit{surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ SA=302\\ r=4 \end{cases}\implies 302=2\pi (4)(h+4) \\\\\\ 302=8\pi (h+4)\implies \cfrac{302}{8\pi }=h+4\implies \cfrac{302}{8\pi }-4=h\implies 8.016\approx h](/tpl/images/0025/3131/c3d58.png)
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