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Adjacent Angles


If any two angles have a common side or vertex without overlapping each other, they are called adjacent angles. See the below image:

 

Angle XYZ and angle ZYD have a common side ZY and common vertex Y so the angle XYZ is adjacent to the angle ZYD

 

When is any angle not called adjacent angle?

As we know, there should be a common side and vertex for becoming adjacent angles. If these conditions are not fulfilled, then the angels will not be adjacent angles. See the below images:

1.  When angles share only a vertex, they are not adjacent angles.

 

2. When angles share only a side, they are not adjacent angles.

 

3. When angles share the side and vertex, but they are overlapping each other.

 

Adjacent angles examples

Below images are the examples of adjacent angles:

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