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I  is the incenter of ABC. We have CE = 12, AE = 9, and AB = 15. Find BC.

 

 May 7, 2021
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I is the incenter of ABC. We have CE = 12, AE = 9,
and AB = 15.
Find BC.

 

\(\begin{array}{|rcll|} \hline \mathbf{ \dfrac{BC}{AB} } &=& \mathbf{ \dfrac{CE}{AE} } \\\\ \dfrac{BC}{15} &=& \dfrac{12}{9} \\\\ BC &=& \dfrac{15*12}{9} \\\\ \mathbf{BC} &=& \mathbf{20} \\ \hline \end{array}\)

 

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 May 8, 2021

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