### Home > PC3 > Chapter 1 > Lesson 1.1.4 > Problem 1-39

1-39.

Solve for * *in each triangle below.

Label the marked sides as opposite, adjacent, or hypotenuse.

Write an equation involving the trigonometric ratio that corresponds to the given sides and angle.

Solve for

. (Use your calculator.)

Follow the same steps in part (a).

What famous mathematician's theorem can help you with this problem?

Pythagorean Theorem

Follow the same steps in part (a). Note that this time

is the opposite side instead of the adjacent side.