四棱锥A﹣BCDE的各顶点都在同一球面上,AB⊥底面BCDE,底面BCDE为梯形,∠BCD=60°,且AB=CB=BE=ED=2,则此球的表面积等于_________ .
21-22高三上·广东揭阳·阶段练习 查看更多[2]
更新时间:2021-09-16 10:57:32
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