Question

I need help please, I forgot how to set up this problem.

Answer 1

`a=10.8\text{ units}`

Explanation:

To find the length of ''a'' in the given triangle, use the Law of Sines theorem:

Therefore, by the given information:

`\begin{gathered} (\sin120)/(a)=(\sin40)/(8) \\ \end{gathered}`

Solve for ''a'':

`\begin{gathered} a=(\sin120*8)/(\sin40) \\ a=10.77 \\ \text{ Rounding to the nearest tenth:} \\ a=10.8 \end{gathered}`