Answer :
The relationships which describe angles 1 and 2 is the adjacent angles as they have in common side.
What are the angles between two lines?
Angles formed by the transverse line cut by the transversal-
- Corresponding angle- Corresponding angle keeps the same position on two different parallel line when cut by transverse.
- Adjacent angle-This angle made between the two angles, when the common side is cut them from between with the common vertex.
- Vertical angle-This angle made, when the two lines crosses each other. When the lines intersect perpendicular, then the varticle angles formed.
- Supplementary angle-Angle which made on the same line. The sum of the supplementary angle is equal to the 180 degrees. The sum of the supplementary angles is equal to 180 degrees.
The angles 1 and 2 shown below in the attached image. In the image, the angle 1 and 2 have the common side which cut them from between with the common vertex.
The relationships which describe angles 1 and 2 is the adjacent angles as they have in common side.
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