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I am Lyosha [343]
3 years ago
8

IM SO LOST PLEASE HELP

Mathematics
1 answer:
LiRa [457]3 years ago
3 0
Check the picture below.

\bf \textit{lateral area of a cone}\\\\
LA=\pi r\stackrel{slant-height}{\sqrt{r^2+h^2}}~~
\begin{cases}
LA=539\pi \\
r=49
\end{cases}\implies 539\pi =\pi 49\sqrt{r^2+h^2}
\\\\\\
\cfrac{539\pi }{49\pi }=\sqrt{r^2+h^2}\implies 11=\sqrt{r^2+h^2}

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