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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?
GeoGebra
New Resources
Stairs (Optical Illusion)
Piano. Keyboard.
Introduction
Angles and Intersecting Lines: Quick Investigation
Construct a Square
Discover Resources
Activity 2
การแยกตัวประกอบ
Solving Quadratic Equations Graphically & Symbolically
Goblet_Cup
SOT22_Parallelograms
Discover Topics
Geometric Transformations
Parametric Curves
Special Points
Geometric Mean
Hyperbola