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Home > GC > Chapter 4 > Lesson 4.2.1 > Problem 4-56


For each diagram below, solve for . Name the relationship(s) you used. Show all work.  

  1. Use the Pythagorean Theorem to solve for .

    After solving for , use the Pythagorean Theorem again to solve for .

  1. Extend the parallel lines that have already been drawn.

    Now establish a relationship between and one of the angles that has already been given.

    Use the Math Notes boxes in Lessons 2.1.1 and 2.1.4 if you need help remembering angle pair relationships.