Kissing Right
- Author:
- John Golden
From a Brilliant.org problem by Banti Paswan,
https://brilliant.org/profile/arron-udsft3/sets/arrons-picks-level-1-challenges-2015-iii/223226/problem/simple-geometry-3/
Why is the triangle formed by the intersection points of two tangent circles and a line tangent to both always a right triangle?