Mathematics, 21.06.2021 03:00 sk9600930
Cho chóp đều S. ABC có cạnh đáy = a, góc giữa mặt bên và mặt đáy bằng 60°. Tính độ dài đường cao SH của khối chóp
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Cho chóp đều S. ABC có cạnh đáy = a, góc giữa mặt bên và mặt đáy bằng 60°. Tính độ dài đường cao SH...
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