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可拖动A、B 改变形状
Author:
孟宝兴
GeoGebra
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第八周作业
兩組對邊相等的四邊形
畫出對稱圖形
四邊形的特性
美國國旗 (Codex 版)
Discover Resources
七巧板揖人2
平行四邊形變奏曲III
證平行四邊形 (對角線互相平分) (對邊 // 且相等)
Gradient of tangent
兩位數除兩位數(例子一)
Discover Topics
Limits
Prism
Triangles
Cube
Differential Calculus