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S0G23 三角形內角和180 旋轉版
Author:
学用数学
GeoGebra
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第八周作业
龙形曲线-分形龙2
折扣
科氏力 (Coriolis Force)
常见四边形是否是双心四边形
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坐標測驗
圓的內接四邊形
電流急急棒棒
If指令的應用1
兩位數除兩位數(例子一)
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Orthocenter
Line Segment
Cone
Division
Sequences and Series