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平行四邊形面積
Author:
lkkbmaths teachers 檔案儲存用
Topic:
Area
,
Parallelogram
GeoGebra
New Resources
球体的体积推导（优化版）
找出對稱軸
第八周作业
画直线等分三角形的面积
兩組對邊相等的四邊形
Discover Resources
三角形面積與內切圓半徑
數線(小數的認識)
拋物線
初三第十五讲真卷4-23题
线面g
Discover Topics
Plane Figures or Shapes
Cosine
Sequences and Series
Numbers
Polygons