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Rotational and reflectional symmetry of a regular polygon
Author:
Ngan Hok Hei
,
lamanleung
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
錐體建築師
畫出對稱圖形
第八周作业
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平行四邊形面積
平行線
Quiz on Solving Compound Inequalities 解複合不等式：測驗
三視圖01
三角形的內心
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Random Experiments
Stochastic Process or Random Process
Trigonometry
Congruence
Intersection