How do you find the missing angle measures?

Make use of the definitions and relationships you know regarding linear angles, angles when a transversal intersects parallel lines, vertical angles, and the the sum of angles in a triangle.
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The missing angles will be one of 30°, 70°, 80°, 100°, or 110°.

The angles have to come out to equal 180°. Figure it out.

The missing angle measures are 30 degrees, 70 degrees and 80 degrees.