Tie a Pentagon

One of the simplest ways to fold a pentagon is to tie a knot in a piece of paper. Tie an overhand knot, fold it flat and voila!

Video Instructions

Links

• For this project and many others check out the book Amazing Math Projects You Can Build Yourself written for kids 9 to 14 years old.

References

• (Morley 1924) (Cundy and Rollett 1961)