Question

Which expressions can be used to find the value of x in the triangle shown? Write the value of x to the nearest tenthx = ____.

Answer 1

To find x we need to use the tangent function, remember that this is defined as:

`\tan \theta=\frac{\text{opp}}{\text{adj}}`

For the angle of 60° then we have:

`\begin{gathered} \tan 60=(20)/(x) \\ x=(20)/(\tan 60) \end{gathered}`

Therefore the expression we can use is option C.