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The Napkin Ring Problem
Author:
Steve Phelps
I saw this video earlier today.
GeoGebra
New Resources
Bottema's Theorem
Isosceles Triangle: Quick Construction
Ellipse as Envelope - Correspondence Method
Linear Cross Section Exercise
van Aubel's Theorem
Discover Resources
Name project
凹面镜及凸面镜成像
prob 5
Hình 1
Can you fit the four pieces into the square? Why?
Discover Topics
Division
Correlation
Polynomial Functions
Fractal Geometry
Calculus