111

Part of 1975 Chisinau City MO

Problems(1)

Chisinau MO p111 1975 R2 IX 6 concyclic wanted, squares on sides of triangle

Source:

Three squares are constructed on the sides of the triangle to the outside. What should be the angles of the triangle so that the six vertices of these squares, other than the vertices of the triangle, lie on the same circle?

SquaresgeometryConcyclic