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Finding angle measures using triangles

Problem

What is the measure of x?
Angles are not necessarily drawn to scale.
A figure made up of 5 line segments that form a star shape. Line segment AC, line segment CD, line segment CB, line segment BE, and line segment EA. Angle B is 40 degrees. Angle D is 31 degrees. Angle EHI is x degrees.
x =
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
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