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In a triangle ABC, m∠B = 120º; AB = a and BC = b; the interior bisector BD is drawn, calculate the length of the said bisector

 Jun 25, 2021
edited by Guest  Jun 25, 2021
 #1
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i would use this formula:

 

$ BD=\frac{2\times a\times b}{a+b}\sin(120) $

 

:D

 Jun 26, 2021
edited by UsernameTooShort  Jun 26, 2021

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