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	Các bình luận về: Cho hình lăng trụ đứng tam giác \(ABC.A&#8217;B&#8217;C&#8217;\) có tam giác \(\Delta ABC\) cân tại \(A\), \(\widehat {BAC} = {120^0}\), \(AB = a\) và \(AA&#8217; = 2a\sqrt 2 \). Tính thể tích khối cầu ngoại tiếp hình lăng trụ \(ABC.A&#8217;B&#8217;C&#8217;\)	</title>
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