quadrilateral with same angles, equal diagonals, are equal?
Source: 2019 Oral Moscow Geometry Olympiad grades 10-11 p2
May 22, 2019
congruentquadrilateraldiagonalscongruencegeometry
Problem Statement
The angles of one quadrilateral are equal to the angles another quadrilateral. In addition, the corresponding angles between their diagonals are equal. Are these quadrilaterals necessarily similar?