In geometry, the two angles you are referring to are known as adjacent angles. These angles are formed when two rays (or lines) originate from the same point.
To elaborate, adjacent angles have the following characteristics:
- They share a common vertex, which is the point where the two lines meet.
- They share a common side, which is one of the rays extending from the vertex.
- They do not overlap, meaning that they are distinct angles and do not cover the same area.
An everyday example of adjacent angles can be seen when two doors are opened from the same hinge: the angles created between the door and the wall are adjacent angles.