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Pls help. asap.

find the surface area of the cone in terms of



11cm 10cm

Pls help. asap. find the surface area of the cone in terms of 11cm 10cm-example-1
User Menelik
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1 Answer

3 votes

if the base of the cone is 10, that means its radius is half that, or 5.


\textit{surface area of a cone}\\\\ SA=\pi rs + \pi r^2~~ \begin{cases} r=radius\\ s=slant~height\\[-0.5em] \hrulefill\\ r=5\\ s=11 \end{cases}\implies SA=\pi (5)(11)+\pi (5)^2 \\\\\\ SA=55\pi +25\pi \implies SA=80\pi ~cm^2

User F P
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