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Mathematics, 23.07.2021 14:00 Jimenezmiranda

Cho hình chóp S. ABC có đáy ABC là tam giác đều cạnh 2a, SA vuông góc với mp (ABC), SA a = 3 .
Thể tích khối chóp S. ABC là?

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Cho hình chóp S. ABC có đáy ABC là tam giác đều cạnh 2a, SA vuông góc với mp (ABC), SA a = 3 .
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