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GeoGebra
GeoGebra Classroom
GeoGebra
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Refraction and lenses
Author:
Malin Christersson
Move the blue points. Drag the sliders.
GeoGebra
New Resources
Construct a Square
Pelecoid
Introduction
Viviani's Window
Ellipse, Hyperbola and Circle as Envelopes
Discover Resources
Test
Graphs of y=f(x) and y=-f(x)
تعين نقطه في الفراغ
Quadrilateral Tools
Segment
Discover Topics
Hyperbola
Square
Probability
Numbers
Coordinates