Question 325067
If you draw the picture, you should get 



<img src="http://i150.photobucket.com/albums/s91/jim_thompson5910/Algebra%20dot%20com/circle5.png">



Looking at the drawing, we have a hypotenuse of {{{r+380}}} miles and a leg of {{{r}}} miles. Since this leg is the opposite leg with the given angle, this means that we can use the sine function. Recall that sin(theta) = opposite/hypotenuse



So {{{sin(65.8)=r/(r+380)}}}



I'll let you continue. If you need more help, let me know.