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congruent (SAS)
Author:
Ricky Chan
GeoGebra
New Resources
近似值：有效數字
畫出對稱圖形
兩組對邊相等的四邊形
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
數值滑桿
托勒密定理推廣到任意四邊形一
向外延伸的多邊形
单晨整体迭代希尔伯特-你的k到几
一个三棱锥的绘图案例
Discover Topics
Intersection
Poisson Distribution
Curve Sketching
Angles
Solids or 3D Shapes