The pairs of angles which are supplementary, are
1 and 2, and
3 and 7
What is supplementary angle?
The supplementary angles are those angles that sum up to 180 degrees.
What is the sum of the angles on one side of a straight line?
The sum of all the angles on one side of a straight line is always 180 degrees.
According to the given question
We have, two parallel lines l and m
Now, according to the given figure
The pairs of angles which are supplementary are
m∠ 1 + m∠5 = 180
m∠2 + ∠6 = 180
m∠3 + m∠7 = 180
m∠ 8 + m∠4 = 180
m∠1 + m∠2 = 180
m∠ 5 + m∠6 = 180
m∠3 + m∠4 = 180
m∠7 + m∠8 = 180
[ the sum of all the angles on one side of a straight line is always 180 degrees i.e. supplementary angles]
Learn more about the supplementary angles here:
https://brainly.com/question/13045673
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