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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
Making New Year's resolutions for 2026
apec
Locus Related to Descartes' Folium
Shells
Pitfalls of Disk/Washer Method
Discover Resources
Moss Egg by Robert Dixon
Knowles
A) Activity 1: Measured length
dot product
Super mario and matrices addition
Discover Topics
Upper and Lower Sum or Riemann Sum
Complex Numbers
Translation
Arithmetic Mean
Normal Distribution