133

Part of 1976 Chisinau City MO

Problems(1)

Chisinau MO p133 1976 X # inside triangle inside square, area ineq.

Source:

A triangle with a parallelogram inside was placed in a square. Prove that the area of a parallelogram is not more than a quarter of a square.

geometrygeometric inequalityareassquareparallelogram