### Home > PC > Chapter 1 > Lesson 1.1.2 > Problem 1-30

1-30.

Is *x* the adjacent side or the opposite side in comparison to the 26º angle?

Write an equation involving the trigonometric ratio with the given sides and angle.

Solve for *x*. (Use a calculator.)

*x* ≈ 16.178

Follow the same steps in part (a).

*x* ≈ 23.390

Three sides are given, so in this case, use the Pythagorean Theorem.

*x* ≈ 19.596

Follow the same steps in part (a).

You should have used the sine ratio.*x* ≈ 7.873