Find missing angles given two parallel lines and a transversal.

Problem

Below are two parallel lines with a third line intersecting them.
If we know that the blue angle is 50, degree, what is the measure of angle x?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
degree