歐拉線 | Euler Line

歐拉線 | Euler Line

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IDENTITY 網站:
https://project-identity.hk

Playlist:
S1-S3 Maths | 三角形的特殊線和中心 | Special Lines and Centres of Triangles
https://www.youtube.com/playlist?list=PL1Pv0-rhcQx6FyPsq7z_HpfD5u4FAJMJI

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