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Penrose Stairway
Author:
Ivan De Winne
The Penrose stairs or Penrose steps, also dubbed the impossible staircase, is an impossible object created by Lionel Penrose and his son Roger Penrose.
GeoGebra
New Resources
Art and Rotational Symmetry
alg2_05_05_01_applet_exp_flvs
Exploring the Derivative of an Exponential Function
Droste effect draft
alg2_05_05_01_applet_exp_2_flvs
Discover Resources
Bicycle Tire
A Side-Side-Area Problem
Hexagon
Cyclic Quadrilateral & it's exterior angle
Subtraksjon (minus) med penger (subtraction with money).
Discover Topics
Geometric Distribution
Logarithmic Functions
Vectors
Boxplot
Power Functions