Question

12. Using the diagram, what can be said about angles 7 and 12?

A. They're congruent.

B. We can't determine from the given information.

C. They're supplementary.

D. They're complementary.

Answer 1

Answer: they are supplementary

Explanation:

Answer 2

they are supplementary because angle 12 is congruent with angle 10 which is supplementary with angle 7 ( that means the measure of angle7+ the measure of angle 12 is 180 grades)
12 and 10 are congruent due to the fact that A and B are two parallel lines and D is a sequent (i don't know how to spell this word). i guess you get it