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EX3.18
Author:
Pokman Cheng
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
異分母分數減法
四邉形 (四年級) 教師版
近似值：有效數字
Discover Resources
數值滑桿
(3D) Tasks: Pyramid, Paper folding & Solid of revolution[20170615]
畫鐘面的副本
勾股定理：射影无字证明
连杆
Discover Topics
Conic Sections
Surface
Parabola
Unit Circle
Ratios