Plane Figure #1 – Use Construction (Temporary) Lines

 

The Drawing

 

 

Hints

 

·       Lines without angles are either horizontal or vertical except for the lines of the diamonds.  Since the diamonds are perfectly rotated squares, you can figure out the angle of the lines. 

·       A challenge is to figure out how to draw a line given its angle and an intersecting line.  The solution is to draw that line intentionally too long and then trim it with the intersecting line.