In the figure below, BAC is a right
triangle with the excircle of radius r_{a }
relative to the hypotenuse BC and the excircles relatives to the
catheti (legs). If s is the semiperimeter and D, E, F, G, H, and M are the
points of tangency, prove that r_{a} = s = AD = AE = BF
= BH = CG = CM.
View or post a solution.
