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拋物線2--焦點法
Author:
06房石祐
拋物線2--焦點法
GeoGebra
New Resources
找出對稱軸
錐體建築師
球體建築師
三位數除以一位數（一）
画直线等分三角形的面积
Discover Resources
色彩視覺藝術：內心與旁心
Irregular shape
四邊形四個九點圓共點(九點心)
認識時鐘
网板第60期第2题
Discover Topics
Upper and Lower Sum or Riemann Sum
Integers
Vectors 2D (Two-Dimensional)
Quadrilaterals
Bar Chart or Bar Graph