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제목89th LS(210716) Inequalities in two triangles (PDF 353)2021-07-17 19:06:07
작성자 Level 10

https://youtu.be/nGt9wj2EWwc 

이전90th LS(210824) Corresponding Angle (PDF 163) Level 102021-08-25
-89th LS(210716) Inequalities in two triangles (PDF 353) Level 102021-07-17
다음88th LS(210713) Mid segment Theorem (PDF 335) Level 102021-07-14