2009.3

Part of Ukraine Correspondence MO - geometry

Problems(1)

inradius of rightangled, compass (2009 All-Ukrainian Correspondence MO 5-12 p3)

Source:

A right triangle is drawn on the plane. How to use only a compass to mark two points, such that the distance between them is equal to the diameter of the circle inscribed in this triangle?

geometrycompassinradiusright triangleUkraine Correspondence