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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
GeoGebra
The golden ratio leads to the golden triangle leads to a regular pentagon
New Resources
power rule of x^n derivatives
Conchoids of Nicomedes
以百分數比較兩個數值
רישום חופשי
Calendar Puzzle
Discover Resources
Girl Mirror
圓心角2
Central and Inscribed Angle Demo
AF1-09-CYUB. Graph the inverse of a function
Discover Topics
Intersection
Orthocenter
Isosceles Triangles
Volume
Bar Chart or Bar Graph