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GeoGebra
拿破崙三角形
Author:
羅驥韡 (Pegasus Roe)
說明影片：
http://youtu.be/q9nxM2MYOVE
Discover Resources
Fourier series of Sawtooth Function
The gradient of a function
Angle Bisector in a triangle
vertical angles
day 80 (2)
New Resources
testfileFri Aug 17 23:45:17 CEST 20180.19228715737670632
testfileFri Aug 17 20:03:01 CEST 20180.11388221354201777
Skill 282 Teacher primer
Pyramid and Cube Nets
adding squares - piece 2
