According to the attached graph, we can see that the hypotenuse is the variable to find. We have the Angle and the height therefore through the Sin[tex]\theta[/tex] we can identify the distance of the slope, that is to say
[tex]sin\theta = \frac{AB}{AC}[/tex]
[tex]sin(15)=\frac{48}{AC}[/tex]
[tex]AC = sin(15)(48)[/tex]
[tex]AC = 185.5Yards[/tex]