Find angles in congruent triangles

Given two triangles, determine whether they are congruent and use that to find missing angle measures.


What is the value of x in the figure shown below?
x, equals
  • 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