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Proof Without Words
Author:
Steve Phelps
Topic:
Pythagoras or Pythagorean Theorem
Drag the points. Drag the slider. What do you notice? What does this prove? How does this prove it?
GeoGebra
New Resources
Rotating Points (Optical Illusion)
Stairs (Optical Illusion)
"Compressed" Astroid as Envelope
Introduction
Pelecoid
Discover Resources
VillanovaK Geo Project
Calculus TASK 1 Position and Velocity
Finding L.C.M. by Listing Multiples 運用列舉法求最小公倍數
CIRCUMFERENCE
Changing Elevation: IM 7.5.3
Discover Topics
Fractal Geometry
Rational Numbers
Differential Calculus
Bar Chart or Bar Graph
Algebra