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Rotational and reflectional symmetry of a regular polygon
Author:
Ngan Hok Hei
,
lamanleung
GeoGebra
New Resources
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
找出對稱軸
拼砌四邊形
畫出對稱圖形
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七巧板奔人3
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Geometry : Basic Elements (幾何： 基本元素)
S3 Volume and Area
河北省2016年25题
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Expected Value
Calculus
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