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Angle Exploration for Quadrilaterals
Author:
Jim Doherty
In this sketch you can explore the sum of the sides of a quadrilateral and the sum of the interior angles of a quadrilateral by choosing any vertex to move.
GeoGebra
New Resources
Exploring the Derivative of a Quadratic Function
Poorly Drawn Parallelograms 2
alg2_05_05_01_applet_exp_2_flvs
Dissections by Guillermo Bautista
Icosahedron1
Discover Resources
Stained glass example
Wild Canines
vertical test for any function upto 4th degree equation
NS2-02-CYU1 (Collecting like terms)
Worksheet 2, Exercise 3
Discover Topics
Equilateral Triangles
Cube
Linear Functions
Diagrams
Cosine