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Exterior Angle
Author:
Hisham Amir @ Wavelink
You may move any of the 3 blue points to change the size and angles of the triangle.
GeoGebra
What properties of the exterior angles that you can identify which applies to any triangles?
New Resources
Poorly Drawn Parallelograms 2
Exploring the Derivative of an Exponential Function
探究由平行線和截線所成的角
Poorly Drawn Parallelograms 3
Quiz: Finding Average Rate of Change
Discover Resources
Geometri
andydinh
Trammel Construction
Extraneous Solutions for Quadratic Equations
Dandelin Theorem
Discover Topics
Special Points
Diagrams
Differential Equation
Trigonometric Functions
Power Functions