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6-110.

Refer to the diagram at right. Homework Help ✎

  1. If and , write an equation and solve for .

  2. If and , write an equation and solve for . Then determine .

    Disregard your calculations for angle measure from part (a).

    Since the lines are parallel, angles and have equal measure.

    ,

2 horizontal parallel lines are crossed by a transversal line, with angles labeled as follows: Upper intersection: interior right: 1, and, interior left, x.  Lower intersection, interior left, 2, and interior right, y.