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Proof Without Words
Author:
Valentyna Pikalova
,
Steve Phelps
Drag the points in the sketch below. What do you notice? What does this prove? How does this prove it?
GeoGebra
New Resources
Icosahedron1
Addition of Vectors
Tutorial: Zip command
Exploring the Area of a Triangle
cylinder net slider
Discover Resources
Lesson 3-1
Special Right Rectangle?
Representing Fractions تمثيل الكسور
Hinge Theorem
AM 2016 P1 Q11b
Discover Topics
Fractal Geometry
Natural Numbers
Rotation
Matrices
Hyperbola