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Incenter
Author:
Beth Stilwell
The incenter is drawn using the angle bisectors. The red lines are perpendicular to the sides through the point of concurrency.
GeoGebra
New Resources
Tutorial: Create lists of numbers and objects
Poorly Drawn Parallelograms 3
Exploring the Derivative of a Quadratic Function
Icosahedron1
Poorly Drawn Parallelograms 2
Discover Resources
CONGRUENT CHORDS, CENTRAL ANGLES, ARCS
MG-Collinearity
Reflective Writing
Topkapi scroll
folding cube的副本
Discover Topics
Quadratic Functions
Diagrams
Similarity Transformation or Similarity
Normal Distribution
Trigonometry