### Home > PC > Chapter 3 > Lesson 3.1.3 > Problem 3-48

3-48.

Find the

*exact*length of. Express your answer in simplified radical form. Use the Pythagorean Theorem.

Write the sine ratio for

. Reduce the fraction. Rationalize the denominator of the fraction you got in part (b) by multiplying the numerator and denominator by

.