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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 it prove this?
GeoGebra
New Resources
Angle Bisector: Quick Warm Up Questions
Position and Velocity Vector
Line Through Two Points and Slope
Proving Triangles Similar: Multistep Transformations
Proving Triangles Similar by Dilation
Discover Resources
Pythagoreans: Sum of Angles in a Triangle
Accumulation Function
sin(1/x)
Goldrush
Discover Topics
Incircle or Inscribed Circle
Right Triangles
Exponent
Arithmetic
Centroid or Barycenter