If m angle a is 155 degrees what is m angle c?

Hi again! If the measure of angle A is 155 degrees, then the measure of angle C is also 155 degrees because vertical angles are congruent. Vertical angles are the two angles created when two lines intersect that are NOT linear. 

Hey there! :)

As you can see on the picture, a and c are the same, while d and b are the same.

If angle A measures 155°, then so will angle C. That means angle C measures 155°

Your answer is 155°

Hope this helps :)

Xis equal to three