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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
cylinder net slider
Ellipse, Hyperbola and Circle as Envelopes
Construct a Square
Piano. Keyboard.
"Compressed" Astroid as Envelope
Discover Resources
Explanation and discovery for Sine Rule
Tess 1.1
Constructing length IP
DISCAREA
polygons
Discover Topics
Parallelogram
Logarithm
Reflection
Differential Calculus
Vectors 2D (Two-Dimensional)