n.多面体(通常指多于六面)

原形：polyhedron复数：polyhedrons

The polyhedron has 20 faces, each of which is a triangle.
多面体有20个面，每个面都是一个三角形。
A regular polyhedron has all its faces and edges congruent.
正多面体的所有面和边都相等。
The vertices of the polyhedron are connected by straight lines to form the edges.
多面体的顶点通过直线连接形成边。
A cube is an example of a polyhedron with six square faces.
立方体是一个具有六个正方形面的多面体的例子。
The volume of a polyhedron can be calculated using the formula V = (1/3)Bh, where B is the area of the base and h is the height.
多面体的体积可以通过公式V=(1/3)Bh计算得出，其中B是底面积，h是高。
The surface area of a polyhedron is the sum of the areas of all its faces.
多面体的表面积是其所有面的面积之和。
A tetrahedron is a polyhedron with four triangular faces.
四面体是一个具有四个三角形面的多面体。
In geometry, a polyhedron is a three-dimensional shape with flat faces.
在几何学中，多面体是一个具有平面面的三维形状。
The symmetry group of a regular polyhedron is determined by its number of faces and the arrangement of its vertices.
正多面体的对称群由它的面数和顶点排列决定。
Archimedean solids are polyhedra that are not regular but have all their faces regular polygons.
阿基米德固体是不规则但所有面都是正多边形的多面体。