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根據百分率找數量（二）: 例4的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
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拼砌四邊形
找出對稱軸
柱體建築師
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
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三角形
Similar triangles in a triangle
熊大
畫等腰直角三角形 題2
纏繞畫未完
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Geometry
Symmetry
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