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The Butterfly Theorem
Author:
Lamberto Lamberti
http://www.cut-the-knot.org/pythagoras/Butterfly.shtml
GeoGebra
New Resources
Average Rate of Change: Graph a Function (1)
Exploring the Derivative of a Quadratic Function
Poorly Drawn Parallelograms 3
alg2_05_05_04_applet_exp_fxn_flvs
Icosahedron1
Discover Resources
training courses for students
إزاحة عمودية
Approximating Functions with Polynomials
Mudcloth Inspired GIF
Art and Rotational Symmetry
Discover Topics
Parallelogram
Parametric Curves
Natural Numbers
Cuboid
Coordinates