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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
Untitled
Monge's Theorem
Let's fly!
GeoGebra around GeoGebra
Constructing Equilateral Triangles + Activities
Discover Resources
MinimizeXPlus2OverX
Math
Angles on Parallel Lines
Y12 Methods
Dice Rolling
Discover Topics
Equilateral Triangles
Fractions
Logarithm
Centroid or Barycenter
Definite Integral