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三角形
Author:
SIN MING WONG
Topic:
Triangles
GeoGebra
New Resources
第八周作业
直角坐標平面上的旋轉變換
找出對稱軸
畫出對稱圖形
柱體建築師
Discover Resources
normal
Locus: Fixed Distance From Straight Line
杯麵
固定周界的長方形的面積變化（周界是200厘米）
用向量找北极星
Discover Topics
Real Numbers
Differential Equation
Sine
General Quadrilateral
Geometric Distribution