Given:
Parallel lines cut by a transversal.
To find:
The sets of supplementary angles.
Solution:
The reference image is attached below.
Adjacent angles in a straight line are always supplementary.
∠1 and ∠2 are supplementary angles.
∠4 and ∠3 are supplementary angles.
∠5 and ∠6 are supplementary angles.
∠7 and ∠8 are supplementary angles.
∠1 and ∠4 are supplementary angles.
∠2 and ∠3 are supplementary angles.
∠5 and ∠8 are supplementary angles.
∠6 and ∠7 are supplementary angles.
These are the 8 sets of supplementary angles.
