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Fold and Twist Algorithm for Some Regular n-Gons

​
strip length
b
n
4
5
6
7
strip
fold
twist
​
pentagon
steps
0
1
2
3
4
Given a strip of paper with
n
congruent parallelograms of base
b
and smaller angle
2π/n
being bisected, one can construct a regular
n
-gon using the fold and twist (FAT) algorithm.
With "pentagon" unchecked, you see just the first step of the algorithm for
n=4,5,6,7
. With "pentagon" checked, you can go through the complete algorithm for constructing a pentagon.
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