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Copy of 3S2 01a 平行四邊形 20151207
Author:
Pollux
,
makkei
Topic:
Parallelogram
GeoGebra
New Resources
直線的斜率
兩位數除以一位數（一）
三位數除以一位數（一）
平行線的斜率
空间中两直线的位置关系
Discover Resources
Rectangle _03
小二均分
橢圓
弦中點的軌跡的副本
正方体展开图的副本
Discover Topics
Square
Ellipse
Mode
Sequences and Series
Translation