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Mathematics, 25.07.2021 14:00 briannamartinez2528

Cho hình chóp S. ABCD có đáy ABCD là hình vuông cạnh a và đường cao SA= căn 3a. tính thể tích khối chóp S. ABCD theo a và góc giữa các cạnh bên của hình chóp với đáy

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Cho hình chóp S. ABCD có đáy ABCD là hình vuông cạnh a và đường cao SA= căn 3a. tính thể tích khối c...

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