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三角形分類
Author:
andrewtang123
GeoGebra
New Resources
AI 訓練教室
Nested spiral octagon
Earth with coastline
算柱 (兩位數)
幾何作圖題：切三圓（題目）
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時鐘小幫手
直線系
廣義三角：tan
Copy of 閱讀鐘面及數字鐘（時和分）
动圆与两(相离)圆外切
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Natural Numbers
Differential Calculus
Root
Trigonometry
Linear Programming or Linear Optimization