Question 20
We have the given triangle
To get x, we will use the trigonometric relation
[tex]\cos \theta=\frac{\text{adjacent}}{\text{hypotenuse}}[/tex]
Thus, we will have
[tex]\cos 71^0=\frac{x}{20}[/tex]
To get x, we will cross multiply
[tex]\begin{gathered} x=20\cos 71^0 \\ x=6.511 \end{gathered}[/tex]
The value of x is 6.51
