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已知正四棱柱ABCD-A 已知正四棱柱的体对角线
已知正四棱柱的对角线的长为 如图可知:∵AC1=6,cos∠AC1A1=33A1C1=2,AA1=2∴正四棱柱的体积等于A1B12?AA1=2故答案为:2已知正四棱柱的体对角线的长为,且体对角线与底面所成角的余弦值为,则该正四棱柱的体。 2...
已知正四棱柱的对角线的长为 如图可知:∵AC1=6,cos∠AC1A1=33A1C1=2,AA1=2∴正四棱柱的体积等于A1B12?AA1=2故答案为:2已知正四棱柱的体对角线的长为,且体对角线与底面所成角的余弦值为,则该正四棱柱的体。 2...