reflex angle
US /ˈriː.fleks ˌæŋ.ɡəl/
UK /ˈriː.fleks ˌæŋ.ɡəl/

名词
1.
优角, 反角
an angle that is greater than 180 degrees but less than 360 degrees
示例:
•
A reflex angle is the larger angle formed when two lines meet.
优角是两条线相交时形成的较大的角。
•
The teacher asked the students to measure the reflex angle of the polygon.
老师要求学生测量多边形的优角。
在 Lingoland 学习这个单词