triangle

/ˈtraɪˌæŋgəl/

a three-sided polygon

中文释义：三角形；三角

The area of a triangle can be calculated using its base and height.

三角形的面积可以通过底和高来计算。

The three countries formed a trade triangle to boost their economies.

这三个国家形成了一个贸易三角以促进经济。