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三角學-正弦公式
Author:
+x sir
Topic:
Triangles
,
Trigonometry
GeoGebra
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兩位數加法
找出對稱軸
錐體建築師
三位數除以一位數（二）
球體建築師
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index
bkb-切割线定理
Quiz on True Bearings 真方位角：測驗
Congruent Triangles
對稱圖
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Differential Calculus
Quadrilaterals
Equations
Set Theory
Algebra