Instructions (S406) 1. Print the four pieces of Brain Teasers 4 2. Cut out the four shapes 3. Form the four shapes into a square 4. Then form the four shapes into a triangle

Print the four shapes below.

 

From: The Puzzling World of Polyhedral Dissections By Stewart T. Coffin Famous puzzle inventor Henry Dudeney was a pioneer in geometrical dissections. His classic four-piece dissection between the square and equilateral triangle, first published in 1902.  Dudeney's solutions can be found at the site http://www.johnrausch.com/PuzzlingWorld/chap01e.htm