carley608
16.06.2021 •
Mathematics
Cho hình chóp sabcd có đáy abcd là hình vuông cạnh a, sa=âcn2/2 tam giác sac vuông tại s và nằm trong mặt phẳng vuông góc abcd. Tính theo a thể tịc v của khối chóp sabcd
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Ответ:
the answer is (c) r= 48/s