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	Các bình luận về: Đề: Cho lăng trụ ABC.A’B’C’ có đáy là tam giác đều cạnh a. Hình chiếu vuông góc của điểm A’ lên mặt phẳng (ABC) trùng với trọng tâm của tam giác ABC. Biết thể tích của khối lăng trụ là \(\frac{{{a^3}\sqrt 3 }}{4}.\) Khoảng cách giữa hai đường thẳng AA’ và BC là:	</title>
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	<description>Học toán, Đề thi toán, Sách giáo khoa Toán, trắc nghiệm Toán online</description>
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