Cho hình đa diện SABCD có \(SA=4,\,\,SB=2...
Câu hỏi: Cho hình đa diện SABCD có \(SA=4,\,\,SB=2,\,\,SC=3,\,\,SD=1\) và \(\widehat{ASB}=\widehat{BSC}=\widehat{CSD}=\widehat{DSA}={{60}^{0}}\). Khoảng cách từ điểm A tới mặt phẳng \((SCD)\) là:![](data:image/png;base64,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)
A \(\frac{2\sqrt{6}}{3}\).
B \(\frac{4\sqrt{6}}{3}\).
C \(\sqrt{2}\).
D \(2\sqrt{2}\).
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán Sở GD và ĐT Lạng Sơn - năm 2018 (có lời giải chi tiết)