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12 ビュー · 27 12月 2022
1.3 Proof about the Diagonals of a Parellelogram
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27 行進 2024
http://www.rootmath.org | Linear Algebra
We prove that the diagonals of a parallelogram are perpendicular if and only if the sides of the parallelogram are the same length.
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12 ビュー · 27 12月 2022
