angle with equal sides

例句：

1. 1. The car is pointingstraight at the traffic light.
   汽车正对着交通灯。
2. 2. The boat's angle withthe shore is 45 degrees.
   船与岸边的夹角是45度。
3. 3. The architect designed the building to havea perfect angle for natural lighting.
   建筑师设计这座建筑时，考虑到了完美的自然光线角度。