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# HELP ME PLZ!!! I ve been stuck onm this problem for 7 hours!

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formula of surface area of half a cylinder????

Guest May 9, 2017
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#1
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Surface Area of Half a Cylinder:

$$A=\frac{1}{2}(2\pi*r*h+ 2\pi*{r}^{2})$$

Hope This Helps!

-MagikaRedNiteTiger

edited by MagikalRedNiteTiger  May 9, 2017
edited by MagikalRedNiteTiger  May 9, 2017
#2
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So the surface area of a cylinder is given by:

A = (2*pi*r*h + 2*pi*r^2)

Therefore half the surface area is just:

A = 0.5*(2*pi*r*h + 2*pi*r^2)

mathmeme  May 9, 2017

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