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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
Poorly Drawn Parallelograms 3
Tutorial: Create lists of numbers and objects
Shadow of a Cube (v2)
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Parallelograms: Quick Investigation
Discover Resources
Circumcenter and incenter
Torus Segitiga
Writing Inverse Functions: Quiz (1)
T is for Tangent Line
Prerequisites
Discover Topics
Optimization Problems
Symmetry
Linear Functions
Stochastic Process or Random Process
Boxplot