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符成岗
Author:
符成岗
GeoGebra
New Resources
兩位數加法
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
判斷球體
異分母分數減法
Discover Resources
等腰三角形 － 等角對等邊
定值角度
Volume of pyramid from triangular prism
Net of pyramid
三角形內角和為180度
Discover Topics
Arithmetic Mean
Differential Equation
Pythagoras or Pythagorean Theorem
Multiplication
Hypothesis Testing