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Home > GC > Chapter 12 > Lesson 12.1.5 > Problem 12-50

12-50.
  1. For each relationship below, write and solve an equation for x. Justify your method. Homework Help ✎

How are these angles related?

4x − 2° = 2x + 9°
11° = 2x
x = 55°

What is the sum of the angles of a parallelogram?

x = 41°

How are these angles related?