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Home > PC > Chapter 1 > Lesson 1.1.2 > Problem 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