三角形

Cosine law of spherical triangles : in the spherical triangle , either side of the hot core corresponding to the cosine of angle equal to each other on both sides of the corresponding hot core product with the cosine angle on both sides of each angle of the sine and the corresponding spherical center piece of any side in the spherical triangle in ...

球面三角形余弦定律：在球面三角形中，任意一边所对应球心角的余弦等于其他两边各自对应球心角的余弦乘积加上这两边各自对应球心角的正弦及任意的那条边在球面三角形中。。。

In the figure, ABC is an equilateral triangle. If it is folded as shown, find the value of x.

图中三角形ABC 为一等边三角形，把该三角形如图所示般折叠，求 x 的大小。

In this paper was obtained minimum point of sums of distances to isosceles triangle certainly was in median line of base of the triangle,and minimum point of quadratic sums of distances to every vextex in general triangle just was bara-center ofthe triangle.

对等腰三角形，得到了到各顶点距离之和的最小值点必在底边的中线上；对一般的三角形，获到了到各顶点距离平方和的最小值点就是三角形的重心。

If appear special triangle, wait like isosceles right-angled triangle or equilateral triangle, so the problem can apply special methodological processing.

假如出现非凡三角形，如等腰直角三角形或等边三角形等，那么新问题就能运用非凡的方法处理。

A Triangle with two sides equal remains Isosceles still.

等边三角形（也就是有两条相等边的三角形）的儿子还是等边三角形。

This paper puts forward the triangle element method for calculating gravity anomaly of three-dimensional sphere-coronal model by using the divergence theorem. In this study, the volume integration was changed into surface integral, a series of triangles were used to fit the surface, and then the Green's formula was adopted to change surface integral into line integral. At the same time, a reasonable calculation program was given.

提出利用高斯公式将体积分变成包围该积分域的全表面积，应用一系列三角形拟合计算表面，然后通过格林公式把对每个三角形的面积分变成对三角形每边的线积分之和的三角元法来计算三度体球冠模型重力异常，同时给出了合理的计算方案。

From calculating the maximum distance between the vertexes and their related average plane for each triangle, and based on the triangle area, surface attribute and the predefined characteristics, the algorithm gives out the triangle's weight, the collapse orders of triangle and makes a continuous level of detail model.

算法计算三角形顶点到相关平均平面的距离的最大值，结合三角形的面积、表面属性和预设特征给出三角形权值，确定折叠次序；并能够用累进网格实现连续的层次细节模型。

Considering the triangulation problem of 3D surface data set of 3DLCS, the thesis presents a multiresolution triangulation method to fit the raw scanning data set and another triangulation method of 3D scattered data set basing on 2D DT construction to fit 3D compressing data set.

对于3DLCS中的三维表面数据点集的三角形化问题，本文提出了针对原始扫描数据点集的多分辨率三角形化方法和针对三维压缩后数据点集的基于二维DT构造的三维散乱数据点集的三角形化方法。

The angle at the vertex P of triangle O1PQ1 is equal to the angle at the vertex P of triangle O2PQ2, so these two right triangles are similar.

三角形O1PQ1中顶点P的角度等于三角形O2PQ2中顶点P的角度，因此这两个直角三角形是相似的。

Theorem 1: If a spherical triangle spherical triangle to the other extreme triangle , the other spherical triangle ...

定理1：如果一球面三角形为另一球面三角形的极三角形，则另一球面三角。。。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。