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过圆上一点作切线,三步
Author:
u.jianwang
GeoGebra
New Resources
球體建築師
錐體建築師
兩位數除以一位數(一)
直角坐標平面上的旋轉變換
兩位數除以一位數(二)
Discover Resources
Triangular Number 三角形數
相似形_Collection
西瓦定理 (Ceva's Theorem)
y=Asin(wx+f)图像变换
繪畫平行四邊形
Discover Topics
Volume
Vectors 2D (Two-Dimensional)
Quadrilaterals
Square
Symmetry