Minimum Inscribed Perimeter

Fagnano's problem Find the inscribed triangle with minimum perimeter.  You can experiment, or press the Reflect button to see how reflections can help with this problem.

Tags: Fagnano, triangle, altitude, reflection

Minimum Inscribed Perimeter 2

The problem – find the triangle with minimal perimeter that can be inscribed in a given triangle. The solution:  reflection helps reduce the problem to a single parameter. The answer: is geometrically appealing. Can you solve it without using the hint?

Tags: triangle, Fagnano