如图,三棱柱ABC—A1B1C1的侧棱AA1⊥底面ABC,∠ACB = 90°,E是棱CC1上中点,F是AB中点,AC = 1,BC = 2,AA1 = 4.
(1)求证:CF∥平面AEB1;(2)求三棱锥C-AB1E的体积.
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如图,三棱柱ABC—A1B1C1的侧棱AA1⊥底面ABC,∠ACB = 90°,E是棱CC1上中点,F是AB中点,AC = 1,BC = 2,AA1 = 4.
(1)求证:CF∥平面AEB1;(2)求三棱锥C-AB1E的体积.
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