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three circle touching each other
Author:
Huang
three circle touching each other
GeoGebra
New Resources
畫出對稱圖形
直角坐標平面上的旋轉變換
sanjiaohanshu
Fibonacci Clock
四邊形的特性
Discover Resources
光的折射（光线自右下向左上）
周界
三角形的五心
线性相关系数
翰林數學_2下_CH4-2_特殊平行四邊形有關對角線的性質
Discover Topics
Trapezoid
Equilateral Triangles
Scalene Triangles
Bar Chart or Bar Graph
Logarithm