Help I will name u a brainlist

The first one is the the correct answer because the angles have a sum of 180 degrees.

Hope that helps you!!

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.