Obtuse angle
01
鈍角, 凹角
an angle that measures more than 90 degrees but less than 180 degrees
例
In a triangle, an obtuse angle is one that is greater than 90 degrees but less than 180 degrees.
三角形において、鈍角とは90度より大きく180度未満の角のことです。
鈍角, 凹角
