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畫三角形 題1b 的複本
Author:
sfcs_maths_p3
,
GeoGebra Institute of Hong Kong
畫三角形 題1b
GeoGebra
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兩位數加法
畫出對稱圖形
兩組對邊相等和有直角的四邊形
柱體建築師
找出對稱軸
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反正切函數
Pyramid (Angle between Plane HBC and HCD)
固定周界長方形的面積變化（二）
對稱圖形
跳棋棋盘
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Congruence
Derivative
Arithmetic Mean
Geometry
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