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椭圆画法2定义法
Author:
冯伟冀
GeoGebra
New Resources
兩位數加法
畫出對稱圖形
【案例】2018年全国1卷理科12题
算柱 (兩位數)
兩位數除以一位數（一）
Discover Resources
蝴蝶線ggb
reflectional symmetry_5
圓錐(可改底面圓半徑、錐體高)
ptccs2new3
HKCEE 2009 Q17
Discover Topics
General Quadrilateral
Dilation
Similar Triangles
Geometric Mean
Curve Sketching