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Triangle Sum Theorem
Author:
Breck Jacobs
The applet proves the triangle sum theorem.
GeoGebra
Move the blue points to change the shape of the triangle.
New Resources
Dodecahedron
Exploring the Derivative of a Quadratic Function
Quiz: Finding Average Rate of Change
Variation Theory Parallelogram Proofs
Shadow of a Cube (v2)
Discover Resources
Corollary 4
Perp Bisector
amazing
CV1.2
Euclidean division by repeated subtraction
Discover Topics
Tree Diagrams
Intersection
Constructions
Frequency Distribution
Mathematics