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拿破崙三角形
Author:
羅驥韡 (Pegasus Roe)
說明影片：
http://youtu.be/q9nxM2MYOVE
GeoGebra
New Resources
第八周作业
拼砌四邊形
兩位數除以一位數（二）
錐體建築師
三位數除以一位數（一）
Discover Resources
平行四邊形
cvcvxcvxcvxcv
congruent (SSA,RHS)
Coffee Brewing Control Chart
动态专题—角度旋转
Discover Topics
Real Numbers
Interest Calculation
Mathematics
Geometric Distribution
Dilation