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Euclid Book IV Proposition 11-Construction of the Regular Pentagon
Author:
Moira Chas
,
Gary Rubinstein
Using a golden ratio to construct a regular pentagon
The golden ratio leads to the golden triangle leads to a regular pentagon
New Resources
Organic Ellipse
Open Middle: Horizontal and Vertical Distances (V1)
Multipurpose Number (0-20) Generators
Bar Graph
Snub Dodecahedron
Discover Resources
Tessellation Example 1
Practice: Solve Trig Eqn in form of Acosx-Bsinx=C
Tangents to a Circle Construction
Drawing Circles in 3D
Vector equation of a line in 3D
Discover Topics
Binomial Distribution
Unit Circle
Numbers
Integers
Definite Integral