MathDB

245

Part of 1953 Moscow Mathematical Olympiad

Problems(1)

MMO 245 Moscow MO 1953 tangential quadrilateral is a rhombus

Source:

8/9/2019
A quadrilateral is circumscribed around a circle. Its diagonals intersect at the center of the circle. Prove that the quadrilateral is a rhombus.
tangentialrhombusdiagonalsgeometry