Help!! will mark brainliest

C

Step-by-step explanation:

The corresponding angles must be congruent if the lines are parallel

I think that is the first one because the distance between them is the same, but I'm not sure.

Anyway tell me if this is the right answer, thx.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.