Step by step guide to construct a circle touching the sides of a triangle, offering a transition from empirical to theoretical approach to a geometric problem.
Reference:
Laborde, C. (2005). Robust and soft constructions: two sides of the use of dynamic geometry environments. In S.C. Chu, W.C. Yang and H.C. Lew (Eds). Proceedings of the Tenth Asian Technology Conference in Mathematics, Cheong-Ju, South Korea: Asian Technology Conference in Mathematics.