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Proof Without Words
Author:
Steve Phelps
Topic:
Pythagoras or Pythagorean Theorem
,
Right Triangles
Drag the points. What does this prove? How does this prove?
GeoGebra
New Resources
Shadow of a Cube (v2)
alg2_05_05_01_slider_practice_flvs
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Icosahedron1
Dodecahedron
Discover Resources
Circle center
Area of sector
angles review
Angle trisection (lengths)
The Value of Pi
Discover Topics
Combinatorics
Secant Line or Secant
Reflection
Rational Numbers
Median Line