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笛卡兒之心
Author:
陳隆期
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
畫出對稱圖形
球體建築師
柱體建築師
兩位數除以一位數（一）
Discover Resources
Lagrange
三角函數
認識函數(表格形式隨機出題)
較複雜的周界問題(一)
黃金三角形
有趣的线
Discover Topics
Area
Terms
Power Functions
Difference and Slope
Quadratic Equations