Math Geometry Problems, Online Education

Geometry Problem 197: Area of a Triangle, Side, Inradius, and Exradius, Typography, iPad Apps

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: \(S = \dfrac{a \cdot r \cdot r_a}{r_a-r}\). View or post a solution

 

Triangle Area: side, inradius, exradius
 

Sketch and Typography of problem 197 using iPad Apps

Sketch and Typography of problem 197 using iPad Apps, Triangle Area: side, inradius, exradius


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