obtuse angle
1
钝角, 凹角
an angle that measures more than 90 degrees but less than 180 degrees
- 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。
- When two lines intersected, they formed two acute angles and two obtuse angles.
当两条线相交时，它们形成了两个锐角和两个钝角。
- The roof of the house had an obtuse angle where two sections met, creating a spacious attic.
房子的屋顶在两部分的交汇处有一个钝角，创造了一个宽敞的阁楼。
- In geometry class, students learned how to measure and classify acute, right, and obtuse angles.
在几何课上，学生们学习了如何测量和分类锐角、直角和钝角。