✔ 最佳答案
For angles smaller than 90 degrees = Acute Angle 銳角
90 degrees = Right Angle 直角
For angles between 90 and 180 degrees = Obtuse Angle 鈍角
180 degrees = Straight Angle 平角
For angles between 180 and 360 degrees = Reflex Angle 反角
360 degrees = Angle at a Point / Round Angle 圓周角