Question

Find the value of x. Round to the

nearest tenth.
х
12
4
X =
= [ ? ]

Answer 1

Use cosine trigonometric relation.

`Cos~x=\frac{Adjacent} {Hypotenuse} \\\\ \to cos~x=(4)/(12) \\\\ \to cos~x= (1)/(3) \\\\ x=arccos((1)/(3))\\\\ x \approx 70°`

Answer 2

70.5

Explanation:

We use cosine (adjacent over the hypotenuse) to calculate this:-)