Angles 1 and 8 are created by line t intersecting with line m.
Line t is called a transversal line, because it intersects 2 parallel lines.
t divides the straight angle formed by m alone, forming the linear pair of angles (1) and (8), whose sum is 180 °, that is they are supplementary.
Answer: (1) and (8) are linear pairs
Both are correct they just chose a different variable to solve for first. they will both get correct answers if they do the rest correctly.
Answer:
D
Step-by-step explanation:
Since they are the same variables