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Home > GC > Chapter 5 > Lesson 5.3.2 > Problem 5-80

5-80.

Find the length of in the diagram from problem 5-79 if DE = 9 units. Homework Help ✎

Use the Law of Sines. See the Math Notes box for this lesson.

Find the measure of the unknown angle.

By Law of Sines:

Solve for x.