题文
如图,三棱柱ABC
A1B1C1中,CA=CB,AB=AA1,∠BAA1=60°.
(1)证明:AB⊥A1C;
(2)若AB=CB=2,A1C=
,求三棱柱ABC
A1B1C1的体积.
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如图,三棱柱ABC
A1B1C1中,CA=CB,AB=AA1,∠BAA1=60°.
(1)证明:AB⊥A1C;
(2)若AB=CB=2,A1C=
,求三棱柱ABC
A1B1C1的体积.
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