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探究判定全等三角形的条件（ SSA? & HL！）
Author:
孙敏捷
GeoGebra
New Resources
兩組對邊相等的四邊形
柱體建築師
異分母分數減法
四邊形的特性
畫出對稱圖形
Discover Resources
圓柱
IMO2014C
軌跡方程式-垂直切線
任意四边形各边中点的连线必构成平行四边形.许兴华数学
立体几何
Discover Topics
Tree Diagrams
Correlation
Scatter Plot
Area
Similar Triangles