Can you help me with number 20? I am confused with it

Question

asked Aug 28, 2023 128k views

1 Answer

Houssam Badri · Answer 1 · 2023-09-02T03:16:02+0000

Question 20

We have the given triangle

To get x, we will use the trigonometric relation

$\cos \theta=\frac{\text{adjacent}}{\text{hypotenuse}}$

Thus, we will have

$\cos 71^0=(x)/(20)$

To get x, we will cross multiply

$\begin{gathered} x=20\cos 71^0 \\ x=6.511 \end{gathered}$

The value of x is 6.51