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Mathematics, 24.07.2021 02:20 caitlinrosekozoxegcb

Cho hình chóp thứ giác S. ABCD có đáy ABCD là hình vuông cạnh a , cạnh bên SA vuông góc với mp đáy và SA = a√2 . Tình thể tích V của khối chóp SABCD

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Cho hình chóp thứ giác S. ABCD có đáy ABCD là hình vuông cạnh a , cạnh bên SA vuông góc với mp đáy v...

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