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V8 Proof Without Words
Author:
ablinstein
,
Steve Phelps
Drag the points. What do you notice? What does this prove? How does this prove it?
GeoGebra
New Resources
探究由平行線和截線所成的角
Shade a spheric triangle with "surface".
Kopie von parabel - parabol
Road Runner (beep, beep)
Roman Numerals Bingo
Discover Resources
Law of Cosines
visualising Rational and Irrational numbers on Number line
Co-ordinate Geometry
Translations Transformation
squares
Discover Topics
Differential Equation
Straight Lines
Polynomial Functions
Cone
Angles