Question

Will mark brainliest!
-------------------------------
The figure below shows parallel lines cut by a transversal:


Which statement is true about ∠7 and ∠8?

∠7 and ∠8 are supplementary because they are a pair of corresponding angles.
∠7 and ∠8 are complementary because they are a pair of adjacent angles on a straight line.
∠7 and ∠8 are congruent because they are a pair of adjacent angles on a straight line.
∠7 and ∠8 are supplementary because they are a pair of adjacent angles that form a straight line.

Answer 1

∠7 and ∠8 are supplementary because they are a pair of adjacent angles that form a straight line.

Answer 2

because they are adjacent angle or pairs in a straight line forming 180 degree angle