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正方形和長方形有甚麼特性？
Author:
Mrchan0219
GeoGebra
New Resources
斐波那契螺旋弧线（表格法）
撒针估算面积实验
斐波那契螺旋弧线（表格法-可动态调节）
中华人民共和国国旗
折扣
Discover Resources
deductive geometry
Generalized Pythagorean Theorem
生活中的平面圖形問題2
hkdse 2014 by mr lo wy
數學電腦繪圖與解題
Discover Topics
Polygons
Angles
Geometric Transformations
Differential Calculus
Equilateral Triangles