... 显示所有三角形边 display all triangle edges 三角形之边 side of a triangle 曲边三角形 curvedlinetrangle ...
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one side of a triangle 三角形的一边
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。
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