Question

For the right triangle below, find the length of ‘x’. Round to the hundredths (2 decimal places)

Answer 1

To find:

The value of x.

Solution:

It is known that the cosine of an angle is equal to the ratio of adjacent side to the hypotenuse.

Here, in the given figure, the value of the cosine of angle 63 degrees is equal:

`\cos63\degree=(x)/(13)`

Solve for x in the given equation:

`\begin{gathered} 0.454=(x)/(13) \\ x=5.902 \end{gathered}`

So, the value of x is 5.90.