The second pair of triangles uses vertex indices 1, 2 and 5, and then 2, 5 and 6.
第二对三角形的顶点索引设置为1,2,5和2,5,6。
All the interior vertices are connected to exactly three vertices each.
所有三角形内的顶点恰好与三个顶点相联结。
A line that joins a vertex of a triangle to the midpoint of the opposite side.
中线从三角形顶点到对边中点的直线
The point on a triangle or pyramid opposite to and farthest away from its base.
角顶三角形或者角锥的与其底边相对且具底边最远的顶点
Ascending Triangle
上升三角形、平顶三角形
an angle formed by three or more planes intersecting at a common point (the vertex).
三个或三个以上的平面相交于一个共同的点（顶点）而形成的角。
Three points must be specified for a corner curve segment.
必须为折角形曲线段指定三个顶点。
a polyhedron having a polygonal base and triangular sides with a common vertex.
有一个多边形底面和有一个共同顶点的三角形侧面的多面体。
Several inequalities and conjectures about the distance from a point to the vertex of a triangle;
有关一点至三角形顶点距离的几个不等式及猜想
Drag to add a triangle with independently adjustable vertices. Alignment box can be shown or hidden.
拖动此形状，可添加顶点可独立调节的三角形。可显示或隐藏对齐框。
The 3 altitudes of a triangle are concurrent.
三角形的三个高共点。
Drag onto the page to add a triangle with independently adjustable vertices. Right-click to show alignment box.
拖到绘图页上，可添加顶点可独立调节的三角形。右击可显示对齐框。
THE FORMATION AND EVOLUTION OF DUAL-NUCLEI STRUCTURE IN DELTA--BASED ON THE APEX CITY;
基于顶点城市的三角洲双核型空间结构形成演化研究
To define the first triangle, we therefore provide vertex indices 0, 1 and 4.
定义第一个三角形，然后设置顶点索引0,1,4。
Vertex Normal Vector Estimation Methods for Manifold Triangular Meshes
二维流形三角网格模型顶点法矢量估计
At the same time convert the angle of the polygon at that vertex into a straight angle.
同时把该顶点处多角形的角转换成平角。
vertical tie post in a roof truss.
支持屋顶的三角形桁架中平行的直柱。
connecting the crossbeam to the apex of a triangular truss.
连接大梁和三角孔桁梁顶点的支柱。