Use a pen to draw a dot where the vertical lines meet ... ends of the line to the dot – you now have a regular equilateral triangle.

It’s a simple thing, really: Would you rather draw 50 triangles, or compute 10000 distance calculations? Well, if you said triangles, the computers agree with you. This diagram shows an ...

The method involves drawing arcs with a compass, from the ends of the given line, to meet at the third vertex of the triangle. Place compass point at point R, and draw an arc using compass opened ...