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Triangle ABC has side lengths AB = 13, AC = 15, and BC = 14.  Let I be the incenter.  Find length BI.

 Aug 22, 2021
 #1
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BI = sqrt(42).

 Aug 22, 2021
 #2
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BI = √52

 Aug 23, 2021
 #3
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BI = 4*sqrt(3).

 Aug 23, 2021
 #4
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$BI = 2 \sqrt{14}$

 Aug 23, 2021

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