You may only use elementary geometry, such as the fact that the angles of a triangle add up to 180 degrees and the basic congruent triangle rules (side-angle-side, etc.).
你可以使用初等的几何知识例如三角形的三个内角各为180度和三角形全等的规则(边-角-边等)。
The height is completely fixed. What we have to choose just is where do we put that top point? Do we put it smack in the middle of a triangle or to a side or even anywhere we want?
高度定了，我们就要找它的坐标,我们要把它放在地面的中间呢,还是放在某个边的上方呢，还是随便放都可以呢？
You have a triangle with all the angles and one side; you can calculate the other sides and you should find exactly the same answer, of course.
已知三角形所有角和一个边，其它边都能求出，答案肯定与前面一致。
The hypotenuse is the longest side of a right triangle.
直角三角形的斜边是直角三角形中最长的边。
For anyone that needs a little refresher course, the sine function gives the ratio of the opposite side of a given Angle in a right triangle to the hypotenuse.
一些人需要复习一点数学课程，正弦的作用是给出在一个直角三角形中的一个已知角所对应的一条边与直角三角形斜边之间的比率。
This example returns the length of the third side of a right triangle by applying the SQUARE function to two variables and then calculating the square root of their sum.
此示例通过对两个变量应用SQUARE函数然后计算其和的平方根，返回直角三角形第三边的长度。
It is common sense that the sum of the Angle of triangle is 180 degree and the sum of any two sides of a triangle is greater than the third side.
三角形三个角之和是180度，三角形任意两边之和大于第三边，这些都是常识。
The area of a triangle is equal to half the product of any side and the altitude on that side.
三角形的面积等于任何一边与那边上的高的乘积的一半。
Given the lengths of the two sides of a right-angled triangle, we can find out the length of a third side.
如果晓得直角三角形两个边的长度，咱们就能求出第三边的长度。
A triangle section is positioned at the center back with the remainder of the back sectioned with a diagonal-forward parting on either side.
一个三角形区段被放置在中心向后地和与在任一边上的对角线-向前的分别一起区段的背面剩余物。
The utility model comprises a triangle bracket body, a thread through hole arranged on the triangle bracket body, and a reinforcing rib arranged on one lateral side of the triangle bracket body.
本实用新型包括三角支架本体，三角支架本体上设置螺纹通孔，在三角支架本体的一个侧边上设置加强筋。
The utility model comprises a triangle bracket body, a thread through hole arranged on the triangle bracket body, and a reinforcing rib arranged on one lateral side of the triangle bracket body.
本实用新型包括三角支架本体，三角支架本体上设置螺纹通孔，在三角支架本体的一个侧边上设置加强筋。
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