they are called supplementary angles.
a straight line has 180 degrees each side and two adjacent angles forming 180 degrees are called supplementary angles.
If the question refers to the total angle on a straight line then the angles are adjacent and supplementary - the angles total 180° .
Well, they're called vertically adjacent angles. They have the property that they are supplementary, because the non-adjacent sides form a straight line.
Sum of adjacent angles on a straight line.
Each angle is 180/5 = 36 degrees
they form a straight line
Supplementary
If the question refers to the total angle on a straight line then the angles are adjacent and supplementary - the angles total 180° .
Well, they're called vertically adjacent angles. They have the property that they are supplementary, because the non-adjacent sides form a straight line.
Sum of adjacent angles on a straight line.
Any angles A, B where A + B = 180 deg.
Two adjacent angles that have noncommon sides forming a line are called supplementary angles. This means that the two angles add up to 180 degrees. The noncommon sides of the angles create a straight line, demonstrating their supplementary relationship. An example of this would be a pair of angles that share a vertex and one side, with their other sides extending in opposite directions to form a straight line.
Two adjacent supplementary angles form a linear pair. This means that the two angles are next to each other and their measures add up to 180 degrees, resulting in a straight line. The shared side between the two angles is the line that connects them.
Supplementary angles.
Because that is what a straight line (or straight angle) is.
180o or a line
The sum of the measures of the angles on a line is always 180 degrees. This is because a straight angle, which is formed by a line, measures 180 degrees. Therefore, any two angles that form a linear pair (i.e., they are adjacent and their non-common sides form a straight line) will add up to 180 degrees.
Thereby forming a straight line.