Obtuse angle
01
钝角, 凹角
an angle that measures more than 90 degrees but less than 180 degrees
例子
In a triangle, an obtuse angle is one that is greater than 90 degrees but less than 180 degrees.
在三角形中，钝角是大于90度但小于180度的角。
The clock hands formed an obtuse angle at 2:30, indicating that it was past noon.
时钟的指针在2:30形成了一个钝角，表示已经过了中午。
