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Tool3P4P之二
Author:
侯杰材
GeoGebra
New Resources
畫出對稱圖形
球体的体积推导（优化版）
四邉形 (四年級) 教師版
画直线等分三角形的面积
兩組對邊相等的四邊形
Discover Resources
鋸齒狀的函數
單項奇函數
畢氏定理動態證明(歐基里得，應用時間參數跳躍函數)
神之作
直线倾斜角与斜率的副本
Discover Topics
Tree Diagrams
Confidence Interval
Exponent
Logarithm
Addition