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棱锥

出自维基百科,自由个百科全书

拉几何学上,棱锥又称角锥,是三维多面体个一种,由多边形各个顶点向渠所在个平面外一点依次连直线段而构成。多边形称为棱锥个底面。随着底面形状弗同,棱锥个称呼也弗相同,依底面多边形而定,例如底面是正方形个棱锥称为方锥,底面为三角形个棱锥称为三棱锥,底面为五边形个棱锥称为五棱锥等等。

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