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根據百分率找數量（一）:例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
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比較五件物件的重量
圓周公式的應用
科氏力 (Coriolis Force)
圓的基本性質
垂直線的斜率
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「相似三角形」任务5
七巧板(底板)_李樂雯
九點共圓
中一︰棱柱的總表面面積-三角棱柱
拋物線2--焦點法
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Equations
Prism
Mathematics
Variance
Complex Numbers