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平行四邊形堆朵
Author:
何姵葶
GeoGebra
New Resources
兩位數加法
四邉形 (四年級) 教師版
球體建築師
兩位數除以一位數（二）
三位數除以一位數（一）
Discover Resources
Hoehn's Theorem
多邊形的伸縮
星星
粒子的拋物線軌跡
Addition and Subtraction of Directed Numbers (2)
Discover Topics
Linear Regression
Statistical Characteristics
Trapezoid
Parabola
Symmetry