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勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
Author:
魏子翔
GeoGebra
New Resources
AI 訓練教室
Nested spiral octagon
兩組對邊相等的四邊形
四邊形的特性
Fibonacci Clock
Discover Resources
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
線段前後分割
Reflectional symmetry of Triangular prism
周界-平移法(練習三)
sin(x) 的函數圖形 的複本
Discover Topics
Equilateral Triangles
Arithmetic
Tangent Function
Square
Circumcircle or Circumscribed Circle