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Triangle Exterior Angle
Author:
Juana Salas
GeoGebra
New Resources
Construct a Square
Supplementary Angles
Introduction
A retro cityscape with mathematics
Piano. Keyboard.
Discover Resources
Proof of the angle sum of a triangle.
Equalateral triangle
numbers
stRot_LP
A.1.11.3 Visual Variability and Statistics (part 1)
Discover Topics
Rectangle
Plane Figures or Shapes
Angles
Fractions
Median Line