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Triangle Exterior Angle Theorem
Author:
William Richards
Move the vertices of the triangle to explore what happens to the angles.
GeoGebra
New Resources
Task 3 - Custom Solid 1
Slope Between 2 Points (Phase 2)
Riemann Sums
apec
Tangent Vector (2)
Discover Resources
Angles along rays.
Polynomial (x+1)(x+1)(2x-6)
Rotations
Element of Set 2
Discover Topics
Statistics
Cylinder
Boxplot
Intersection
Special Points