straight angle
US /streɪt ˈæŋ.ɡəl/
UK /streɪt ˈæŋ.ɡəl/
名詞
平角
an angle of 180°, which forms a straight line
範例:
•
A straight angle is exactly half of a full rotation.
平角正好是完整旋轉的一半。
•
When two rays point in opposite directions, they form a straight angle.
當兩條射線指向相反方向時，它們形成一個平角。