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四边形面积最大
Author:
李莹
GeoGebra
New Resources
近似值：有效數字
兩位數除以一位數（一）
畫出對稱圖形
GeoGebra笔记功能体验课件
找出對稱軸
Discover Resources
三角形三邊關係
Measuring Volume 3
moon1
題四
诱导公式六（90°-α）
Discover Topics
Bar Chart or Bar Graph
Expected Value
Sine
Inequalities
Differential Equation