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翰林數學_2下_CH4-2_平行四邊形性質
Author:
翰林數學
GeoGebra
New Resources
圓周公式的應用
第八周作业
三位數除以一位數（二）
兩位數加法
画直线等分三角形的面积
Discover Resources
Parallel lines (angle of inclination and slope) v2
淮阴2015-28
正方體一筆畫
正三角形堆垛
Ghost鬼腳圖遊戲12-13
Discover Topics
Arithmetic Operations
Interest Calculation
Reflection
Ellipse
Polygons