查询词典 right triangle

Mathematics: Understands and applies basic and advanced properties of the concepts of geometry; Use the Pythagorean theorem and its converse and properties of special right triangles to solve mathematical and real-world problems; Understands the basic concepts of right triangle trigonometry (e.g., basic trigonometric ratios such as sine, cosine, and tangent); Uses trigonometric ratio methods to solve mathematical and real-world problems (e.g., determination of the angle of depression between two markers on a contour map with different elevations); Uses properties of and relationships among figures to solve mathematical and real-world problems e.g., uses the property that the sum of the angles in a quadrilateral is equal to 360 degrees to square up the frame for a building; uses understanding of arc, chord, tangents, and properties of circles to determine the radius given a circular edge of a circle without the center

数学：理解和应用几何概念的初级和高级特性；用毕德哥拉斯定理、逆定理以及特殊直角三角形性质解决数学的和现实世界的问题；理解基本的直角三角形三角比；运用三角比方法解决数学的或现实的问题。（等高线图上的两个标记之间的俯角确定）运用形体之间的关系及其属性解决数学的或现实的问题（利用四边形内角和等于360度来为建筑物框架取正，运用弧，弦，切线和圆的性质确定缺少中心的一段圆弧的圆心

This code is not casually arranged, it actually represents the Frog Kok of Cotangent value, which is part of Frog heart right triangle and two right-angle-FE AE ratio, that is, N = ctg α= FE / AE , N, is turnout.

这个代号可不是随便排列的，它实际上代表了辙叉角的余切值，也就是辙叉心部分直角三角形两条直角边FE和AE的比值，即N=ctgα=FE/AE，N就是道岔号。

According to the principle of the diameter of a circle corresponding to the right angle and the principle of short side for little angle in right triangle, projecting the initially-chosen point to the hyper-planes of the linear equation group in which every linear equation can be regarded as a hyper-plane and the projection points can be obtained. The initially-chosen point, and one arbitrary projection point, and the solution point are all on the surface of the relative hyper-geometry ball, therein-to, there is a projection point which is nearest to the solution point and it can be regarded as the next iterative initially-chosen point, so the solution problem of the linear equation group can be changed as an iterative problem of approaching the solution on the surface of a hyper-geometry ball.

根据直径对应的圆周角足直角以及直角三角形中短边对小角的原理进一步知道，当将初始点向线性方程组中各个方程所代表的超平面上投影得到投影点时，初始点和其任何一个投影点及方程组的解点都将位于一个相应的超球面上，其中必定存在一个投影点离问题解点的距离最短，即把该点作为下一次迭代的初始点，从而可将线性方程组求解的问题变成球面上逼近解点的迭代问题。

This is a right triangle(isosceles triangle/ equilateral triangle).

这是一个直角三角形。

DA triangle with one 90° angle is a right triangle .

一个角为90°的三角形是直角三角形。

Right triangle: One of the three angles is a right angle.

直角三角形：有一个角是直角，有两个角是锐角。

The side of a right triangle opposite the right angle .

直角三角形的相对于直角的边。

It proposed that during the structural deformation (about in the Yanshan～Himalaya movement epochs), under the control of the right triangle boundary condition and in the united stress field in which the three boundaries were acted on by three side forces vertical to them at the same time, petroleum/gas substances in the block that had been in fluid/gas state at that time might move driven by high pressure driving from the side parts to the center of the triangle block along with deformation of the rock beds, forming industrial gas fields in the suitable structure parts of the triangle block.

据此提出川南地区在直角三角形边界条件控制下，在三边同时受力的联合应力场中，当时已呈液、气态的油气物质在高压驱动下随岩层褶皱变形大体同步自三角形边缘向中心推进扩展运移，在三角形中部适当的构造部位聚集，形成工业油气田的新观点。

As Yukio Hatoyama wants Japan to interact more with China, the right triangle in which China is at the vertex of a small acute angle and Japan and the US at the other two vertices may become one that is more like an equilateral triangle. Clearly, Yukio Hatoyama sets greater store by China than Taro Aso.

鸠山由纪夫的外交理念是增加与中国的互动，人们也许会看到东北亚中、美、日三角，会由往昔的直角三角形的美日在一边而中国在另一边，调整到类似等边三角形。

For a given triangle data, to determine that this triangle is more of an isosceles triangle, right triangle, equilateral triangle, isosceles right-angled triangle, the triangle which atypical.

对于给定的三角形的数据，判断此三角形更属于等腰三角形，直角三角形，正三角形，等腰直角三角形，非典型三角形的哪一种。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。