MathDB

344

Part of 1956 Moscow Mathematical Olympiad

Problems(1)

MMO 344 Moscow MO 1956 3 nodes of a graph paper, acute

Source:

8/19/2019
* Let A,B,CA, B, C be three nodes of a graph paper. Prove that if △ABC\vartriangle ABC is an acute one, then there is at least one more node either inside △ABC\vartriangle ABC or on one of its sides.
graphacutegeometrycombinatorial geometry