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Please may I have some help?

 Mar 27, 2020
 #1
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+1

Surface Area of a Cylinder

 

\(\begin{array}{|rcll|} \hline \text{area} &=& 2\pi r^2+2\pi r h \quad | \quad r=2\ \text{cm},\ h=4\ \text{cm} \\ \text{area} &=& 2\pi 2^2+2\pi *2*4 \\ \text{area} &=& 2\pi 2^2+2\pi *2*4 \\ \text{area} &=& 8\pi +16\pi \\ \text{area} &=& 24\pi \\ \text{area} &=& 75.3982236862 \ \text{cm}^2 \\ \hline \end{array} \)

 

Surface Area of a Cylinder is \(\mathbf{\approx 75.4\ \text{cm}^2}\)

 

laugh

 Mar 27, 2020
edited by heureka  Mar 27, 2020
 #2
avatar+57 
+1

Thanks smiley

 Mar 30, 2020

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