### Home > INT2 > Chapter 12 > Lesson 12.2.4 > Problem12-137

12-137.

Solve this problem without a calculator:

Examine the triangle at right. Calculate the approximate value of $x$. Use the values in the trigonometric table below as needed.

 $θ$ $\operatorname{cos}(θ)$ $\operatorname{sin}(θ)$ $\operatorname{tan}(θ)$ $28°$ $0.883$ $0.469$ $0.532$

Remember that $\text{sin}(\theta)=\frac{\text{opp.}}{\text{hyp.}}, \text{ cos }(\theta)=\frac{\text{adj.}}{\text{hyp.}}, \text{ and tan }(\theta)=\frac{\text{opp.}}{\text{adj.}}.$

How are $\operatorname{sin(62)}$ and $\operatorname{cos(68)}$ related?