悠然 from China:
Acute Angle Quinquesection Method
悠然 from China:
3-13 Division Methods by Fu Wei
悠然 from China:
Double 30-60-90 Triangles
悠然 from China:
Four Quinquesection Methods
悠然 from China:
Folding Triskaidecagon in Square
悠然 from China:
Idea for Folding Triskaidecagon
悠然 from China:
Nearly-equal Square for finding the same interior Triskaidecagon
悠然 from China:
圆心角等分,则真径上圆心直到圆周角形成的角近似等分
悠然 from China:
15 等分取法
悠然 from China:
Fold Max Regular Nonagon in Square
悠然 from China:
Fold Regular Nonagon in Square
悠然 from China:
Polygons in Square
悠然 from China:
fold max hendecagon P1
悠然 from China:
fold max hendecagon P2
悠然 from China:
fold max hendecagon P3
悠然 from China:
fold max hendecagon P4
悠然 from China:
2-3-4-5 & √29_ Interesting Pythagoras Tree
悠然 from China:
numbers and their square root values
悠然 from China:
29 Division Method
悠然 from China:
57等分_57 Division Method
悠然 from China:
Sequence Square Prove
悠然 from China:
9+3√3 取点方法
悠然 from China:
三等分综合--Trisection Summary
悠然 from China:
Find Max Hexagon in Square
悠然 from China:
Fold Optimal Hexagon from Square by David Dureisseix
悠然 from China:
正方形取最大六边形_Fold Max Hexagon in Square
悠然 from China:
find 30 degrees by folding
悠然 from China:
Find 30 degrees by Drawing Circles
悠然 from China:
Find 30 Degrees Diagram
悠然 from China:
max heptagon in square