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14 Proof Without Words
Author:
Linda Bollman
,
Steve Phelps
Drag the points. Drag the slider. What do you notice? What does this prove? How does this prove?
GeoGebra
New Resources
Flag in the wind
Chaotic behaviour
Droste effect
Woven
Cube of a Binomial - Volume Model
Discover Resources
Sine and Cosine in the Unit Circle
Trigonometric ratios and the unit circle
Linear Functions: Standard Form
Copying a angel
Dividing the side of a paper into n equal parts
Discover Topics
Circumcircle or Circumscribed Circle
Equilateral Triangles
Incircle or Inscribed Circle
Terms
Similar Triangles