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Bài giảng 1
Author:
Đỗ Cao Long
Bài 1
Bài 2:
New Resources
The Cosine Formula - Proof Without Words
koch tool
Floch, fractal, iteration, custom tool.
Exploding cube
The black friday GeoGebra :)
Discover Resources
Hexagon Dice Sheet (Draft5)
Rhombus Project
Altitudes
Algebra 2 - Lesson 6.3 Part 1
#15 4-2 例題9