equilateral construction 2 vertices on parallel lines
Source: Spanish Mathematical Olympiad 1972 P5
December 5, 2022
geometryconstructionEquilateral
Problem Statement
Given two parallel lines and and a point on the plane that contains them and that is not on them, determine an equilateral triangle whose vertex is point , and the other two, one on each of the two lines.
https://cdn.artofproblemsolving.com/attachments/9/3/1d475eb3e9a8a48f4a85a2a311e1bda978e740.png