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congruent (SA)
Author:
Ricky Chan
GeoGebra
New Resources
拼砌四邊形
兩位數加法
兩組對邊相等的四邊形
算柱 (兩位數)
四邉形 (四年級) 教師版
Discover Resources
中線平方定理在圓上應用
斯坦納-雷米歐司(Steiner-Lehmus)定理證明一
三角形的外角和
熊大
拼砌四邊形
Discover Topics
Probability
Parallelogram
Arithmetic Mean
Equilateral Triangles
Congruence