How to Divide the Side of Square Paper

N-section using Haga theorems

Using Haga theorems, you can divide into not only 5, but 7, 37, or any number you like. Following table shows the relation of point P and point T. It is common to three theorems in spite of the different folds. Isn't it amazing?

Haga First Theorem

Haga Second Theorem

Haga Third Theorem

AP/AB	BT/AB
1/2	2/3
1/4	2/5
3/4	6/7
1/8	2/9
3/8	6/11
5/8	10/13
7/8	14/15
* *	* *
n/2^r	2n/(2^r+n)

The verifications are the same as before.

by Koshiro