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抛物线定义
Author:
周成涛
Topic:
Conic Sections
GeoGebra
New Resources
畫出對稱圖形
異分母分數減法
三位數除以一位數（一）
兩位數除以一位數（二）
判斷球體
Discover Resources
Key stage 1
周界平移
內擺線觀察
範例：丟骰子的副本
直角坐標平面上的旋轉變換 (1)
Discover Topics
Similar Triangles
Geometric Transformations
Volume
Prism
Pythagoras or Pythagorean Theorem