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External Angle of a Triangle
Author:
Katharine Hancock
GeoGebra
New Resources
A retro cityscape with mathematics
Witch of Agnesi - A Classical Construction
Angles and Intersecting Lines: Quick Investigation
Napoleon's Theorem
Isosceles Triangle: Quick Construction
Discover Resources
Equilateral Triangle
Brandon Slider triangle
Pascal Application 2
day 91
G 2.6.2 Side-Angle-Side Congruence
Discover Topics
Functions
Subtraction
Square
Similar Triangles
Centroid or Barycenter