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congruent (SSS) 2
Author:
Ricky Chan
GeoGebra
New Resources
活动三:应用性质
第八周作业3
常见四边形是否是双心四边形
折扣
斐波那契螺旋弧线(表格法)
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parallelogram
簡單動畫
鑲嵌圖形-1
高斯定理:對角線中點共線
y=a*tan(b*x)
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Square
Logarithm
Equilateral Triangles
Similar Triangles
Combinatorics