直角三角形

Triangles are isosceles triangle, equilateral triangle, acute triangle, obtuse triangle, and triangle.

三角形有等腰三角形、正三角形、锐角三角形、钝角三角形和直角三角形。

A novel V-shaped slot antenna with a small right-angle triangle of supplementary slot is presented. The slot clement is fed by an arrow-shaped terminal of a microstrip line printed on the other side of substrate, and its good impedance matching is achieved by adjusting the area of this triangular supplementary slot.

提出了一种新颖的V形微带缝隙天线，地板上开一个直角V形缝隙，在V形缝隙的顶角处附加一个小直角三角形补偿隙，通过改变三角形补偿隙面积的大小可以对天线阻抗匹配进行优化，由基片另一侧的箭形微带线终端对缝隙单元馈电。

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

The longer edge of the door; the hypotenuse is the longest side of a right triangle.

较长的门边；直角三角形的斜边是直角三角形中最长。

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。

Triangle with one right angle is called right-angled triangle.

*有一个角是直角的三角形叫做直角三角形。

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。

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。

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。

The experimental results prove that the arbitrary triangles can be efficiently detected. Right-angled triangle, isosceles triangle and equilateral triangle also can be detected if the conditions are changed.

实验表明该算法能够有效检测出任意三角形，改变线段的长度条件或角度条件还可以检测直角三角形、等腰三角形、等边三角形等特殊三角形。

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。