MathDB

31

Part of 2000 Harvard-MIT Mathematics Tournament

Problems(1)

2000 Guts #31: Constructing point on segment

Source:

10/25/2014
Given collinear points A,B,CA,B,C such that AB=BCAB = BC. How can you construct a point DD on ABAB such that AD=2DBAD = 2DB, using only a straightedge? (You are not allowed to measure distances)