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Proof Without Words
Author:
Steve Phelps
Drag the points. Drag the slider. What do you notice? What does this prove? How does this prove?
GeoGebra
New Resources
Witch of Agnesi - A Classical Construction
van Aubel's Theorem
Stairs (Optical Illusion)
cylinder net slider
Spinning cube - Belt Trick
Discover Resources
PS planes nov 2014
SAGITADYAHPUTRANTI_1300006110
text-change
Understanding the VOLUME of rectangular prisms
Lune with sliders
Discover Topics
Pythagoras or Pythagorean Theorem
Circumcircle or Circumscribed Circle
Trigonometry
Equilateral Triangles
Piecewise Functions