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平行四邊形面積
Author:
曾己泉
Topic:
Parallelogram
平行四邊形的面積=底 x 高
GeoGebra
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【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
拼砌四邊形
球体的体积推导(优化版)
GeoGebra笔记功能体验课件
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鉛筆畫圓
包絡橢圓
Centroid
中位线的副本
圖三 的複本
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Conic Sections
Parametric Curves
General Quadrilateral
Kite
Triangles