Question

If a ray stands on a line,then some of two adjacent angles so formed is 180 degree in vice versa.this property is called as

Answer 1

straight angle sum property

Answer 2

Answer:

When the ray stands on line,two adjacent angles are formed,

We know that the angles lying on straight line is 180 degree

The two angles being adjacent makes a total angle of 180 degree on the straight line

Another way,we can see since the ray stands on the straight line,we can consider it is perpendicular line

Thus,the two adjacent angles are right angles

So,the total angle

=90 degree + 90 degree

=180 degree

(Referred to the given attachment )

Step -by-step explanation: