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A Triangle's Angles
Author:
Steve Kifowit
The sum of the measures of the interior angles of any triangle is 180°.
GeoGebra
New Resources
Pitfalls of Disk/Washer Method
bewijs stelling van Pythagoras
Triangle with 3 Right Angles
Reflection = 180° Rotation about a Line
Exploring GeoGebra for the First Time
Discover Resources
Possible3
Tangent Circle
Unit Circle (Easier)
quad 4
Euler Line
Derivative Sketcher 2
Discover Topics
Interest Calculation
Geometric Mean
Probability
Normal Distribution
Inequalities