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proof*5 張華炘
Author:
郭亮偉
GeoGebra
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兩組對邊相等和有直角的四邊形
第八周作业
三位數除以一位數（二）
兩位數加法
找出對稱軸
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Yeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
菱形六十面體
學測105-9
余弦定理的证明
Copia lui Easter egg
Discover Topics
Right Triangles
Linear Functions
General Quadrilateral
Coordinates
Complex Numbers