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 Problem 197. Area of a Triangle, Side, Inradius, and Exradius

In the figure below, given a triangle ABC of area S, r is the inradius, and ra is the exradius relative to side BC = a. Prove that Formula to prove: side, inradius, exradius.
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Triangle Area: side, inradius, exradius
 

 

 


Elearning 197: Triangle Area

 

 

 
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