[题目]有一个多面体.共由四个面围成.每一个面都是三角形.则这个几何体为( )A．四棱柱 B．四棱锥C．三棱柱 D．三棱锥题目和参考答案——青夏教育精英家教网—

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【题目】有一个多面体，共由四个面围成，每一个面都是三角形，则这个几何体为（）

A．四棱柱 B．四棱锥

C．三棱柱 D．三棱锥

【答案】D

【解析】四个面都是三角形的几何体只能是三棱锥．

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