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橢圓拋物面2
Author:
紀老師
GeoGebra
New Resources
兩位數加法
球体的体积推导（优化版）
球體建築師
算柱 (兩位數)
判斷球體
Discover Resources
畢達哥拉斯定理
判斷線型函數y=f(x)=ax+b的b值(隨機出題)
兩橢圓交集
圓切三半圓
earth
Light reflected in ellipse
Discover Topics
Equilateral Triangles
Pythagoras or Pythagorean Theorem
Translation
Tangent Function
Variance