Triangle on parallel lines
Given three parallel lines - HOW can you construct
using straight edge and compass only, an
- isosceles triangle
- isosceles right triangle
- equilateral triangle
with one vertex on each line?
Does your construction work for any set of three parallel lines?
Use the blue dots to set the positions of the parallel lines
Use the green dots to position the vertices of the triangle
Adapted from an applet by Anthony C. M. Or