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Home > A2C > Chapter 4 > Lesson 4.2.4 > Problem 4-126
4-126.
Find the value of
Use the Pythagorean Theorem.
Use the positive side length.
See part (a).
You can use special triangles 30-60-90 and 45-45-90, or solve by using the Law of Sines.
Remember to check your work.