(0, π)
[tex]cos(\pi) = \frac{x}{13}[/tex]
[tex]13cos(\pi) = x[/tex]
[tex]13(1) = x[/tex]
[tex]13 = x[/tex]
[tex]sin(\pi) = \frac{y}{13}[/tex]
[tex]13sin(\pi) = y[/tex]
[tex]13(0.055) = y[/tex]
[tex]0.715 = y[/tex]
Polar Coordinates: (0, π)
Rectangular Coordinates: (13, 0.715)
