\( A L, B M \) and \( C N \) are perpendicular from angular points ... VIDEO
\( A L, B M \) and \( C N \) are perpendicular from angular points of a triangle \( A B C \) on the opposite sides \( B C, C A \) and \( A B \)https://bit.ly/YTAI_PWAP https://www.pw.live
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