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Unrolling a circle 的副本
Author:
Nina Wang
GeoGebra
New Resources
找出對稱軸
兩位數除以一位數（一）
兩位數除以一位數（二）
兩位數加法
三位數除以一位數（二）
Discover Resources
Trigonometric Ratios: Cosine & Tangent 三角比：餘弦和正切
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
展開圖
黃金三角形
橢圓代數性質,光學性質,生活應用
Discover Topics
Addition
Rational Numbers
Fractal Geometry
Linear Functions
Exponential Functions