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congruent (SSA,RHS)
Author:
Ricky Chan
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
拼砌四邊形
四邉形 (四年級) 教師版
柱體建築師
【案例】2013年安徽高考15题
Discover Resources
tool for age question
兩數相加
九點圓定理
真分數、假分數和帶分數
地球儀
Discover Topics
Ellipse
Piecewise Functions
Statistical Characteristics
Perimeter
Multiplication