如图所示,三棱柱ABC—A1B1C1中,AB=AC=AA1=2,面ABC1上面AAlClC,∠AAlCl=∠BAC1=600,AC1与A1C相交于0,E为BC的中点.
(1)求证.OE∥面AAl BlB;
(2)求证:B0⊥面AA1C1C;
(3)求三棱锥C—AEC1的体积.
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如图所示,三棱柱ABC—A1B1C1中,AB=AC=AA1=2,面ABC1上面AAlClC,∠AAlCl=∠BAC1=600,AC1与A1C相交于0,E为BC的中点.
(1)求证.OE∥面AAl BlB;
(2)求证:B0⊥面AA1C1C;
(3)求三棱锥C—AEC1的体积.
试题篮
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