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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
alg2_05_05_01_slider_practice_flvs
Dodecahedron
alg2_05_05_01_applet_exp_2_flvs
Average Rate of Change: Graph a Function (2)
alg2_05_05_01_applet_exp_flvs
Discover Resources
roots
arc length moyer
LDS Box plot samples of 20
Asgarova
Locus 6
Discover Topics
Indefinite Integral
Pythagoras or Pythagorean Theorem
Similarity Transformation or Similarity
Stochastic Process or Random Process
Incircle or Inscribed Circle