The triangle was divided into five triangles similar to it. Is it true that the original triangle is right-angled? (S. Markelov)
Problem
Source: 2007 Oral Moscow Geometry Olympiad grades 10-11 p1
Tags: geometry, similar triangles, right triangle
Source: 2007 Oral Moscow Geometry Olympiad grades 10-11 p1
Tags: geometry, similar triangles, right triangle
The triangle was divided into five triangles similar to it. Is it true that the original triangle is right-angled? (S. Markelov)