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中考 2018 北京-22 圆与切线
Author:
acchu
GeoGebra
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画直线等分三角形的面积
算柱 (兩位數)
四邊形的特性
球體建築師
兩組對邊相等和有直角的四邊形
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In-centre
正方形所夾三角形面積相等
空間線性組合
Activity 2
莱洛三角形的互滚
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General Quadrilateral
Confidence Interval
Kite
Quadratic Equations
Conditional Probability