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銀杏葉
Author:
連琨銘
GeoGebra
New Resources
球體建築師
兩組對邊相等的四邊形
Nested spiral octagon
美國國旗 (Claude 版)
拼砌四邊形
Discover Resources
差的完全平方
HKMO 2013 Question 3 Demonstration (Geometric Construction)
[洋葱] 四边形与旋转变换
線性變換矩陣（二階）的副本
面积
Discover Topics
Circle
Rhombus
Isosceles Triangles
Dilation
Vectors 2D (Two-Dimensional)