A triangle, its incircle and a right triangle. The circle centre is shown in blue. Prove that the tangency points and right triangle vertex are collinear.

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- Post author By Rik D. Tangerman
- Post date May 5, 2023
- No Comments on The right position

A triangle, its incircle and a right triangle. The circle centre is shown in blue. Prove that the tangency points and right triangle vertex are collinear.

Scroll down for a solution to this problem.