两个相同的正四棱锥底面重合组成一个八面体,可放于棱长为 的正方体中,重合的底面与正方体的某一个面平行各顶点均在正方体的表面上,把满足上述条件的八面体称为正方体的正子梯.问此
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![两个相同的正四棱锥底面重合组成一个八面体,可放于棱长为 的正方体中,重合的底面与正方体的某一个面平行各顶点均在正方体的表面上,把满足上述条件的八面体称为正方体的正子梯.问此](/uploads/image/z/11285275-67-5.jpg?t=%E4%B8%A4%E4%B8%AA%E7%9B%B8%E5%90%8C%E7%9A%84%E6%AD%A3%E5%9B%9B%E6%A3%B1%E9%94%A5%E5%BA%95%E9%9D%A2%E9%87%8D%E5%90%88%E7%BB%84%E6%88%90%E4%B8%80%E4%B8%AA%E5%85%AB%E9%9D%A2%E4%BD%93%2C%E5%8F%AF%E6%94%BE%E4%BA%8E%E6%A3%B1%E9%95%BF%E4%B8%BA+%E7%9A%84%E6%AD%A3%E6%96%B9%E4%BD%93%E4%B8%AD%2C%E9%87%8D%E5%90%88%E7%9A%84%E5%BA%95%E9%9D%A2%E4%B8%8E%E6%AD%A3%E6%96%B9%E4%BD%93%E7%9A%84%E6%9F%90%E4%B8%80%E4%B8%AA%E9%9D%A2%E5%B9%B3%E8%A1%8C%E5%90%84%E9%A1%B6%E7%82%B9%E5%9D%87%E5%9C%A8%E6%AD%A3%E6%96%B9%E4%BD%93%E7%9A%84%E8%A1%A8%E9%9D%A2%E4%B8%8A%2C%E6%8A%8A%E6%BB%A1%E8%B6%B3%E4%B8%8A%E8%BF%B0%E6%9D%A1%E4%BB%B6%E7%9A%84%E5%85%AB%E9%9D%A2%E4%BD%93%E7%A7%B0%E4%B8%BA%E6%AD%A3%E6%96%B9%E4%BD%93%E7%9A%84%E6%AD%A3%E5%AD%90%E6%A2%AF.%E9%97%AE%E6%AD%A4)
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