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等腰直角三角形与双垂直
Author:
林峰
GeoGebra
New Resources
龙形曲线-分形龙2
三角函数 的副本
斐波那契螺旋弧线（表格法-可动态调节）
第八周作业2
异形操场
Discover Resources
以量角器量度角
vbvbvbvc
線性規劃
加法
DSE Circle-ACT01D Distance of Chords and Centre of a Circle
Discover Topics
Multiplication
Triangles
Constructions
Dilation
Vectors 3D (Three-Dimensional)