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Home > GC > Chapter 3 > Lesson 3.1.2 > Problem 3-20

3-20.

A transversal line cuts two horizontal parallel lines. About the point of intersection of the top parallel line and the transversal line is the exterior right angle, 5x + 11 degrees. About the point of intersection of the bottom parallel line and the transversal line are 2 given angles: interior, left, 119 degrees and interior, right, y degrees.Examine the relationships in the diagram at right. Then solve for and , if possible. Justify your work using angle relationships.   

and are supplementary angles, and and are corresponding angles.

See the homework help for problem 2-55 in Lesson 2.1.5 if you need further help solving for and .