# How do I find the distance between the points with polar coordinates (2, 120^circ) and (1, 45^circ)?

$\left(- 1 , \sqrt{3}\right)$ and $\left(\frac{1}{\sqrt{2}} , \frac{1}{\sqrt{2}}\right)$
$\sqrt{{\left(- 1 - \frac{1}{\sqrt{2}}\right)}^{2} + \left(\sqrt{3} - \frac{1}{\sqrt{2}}\right)}$
$= 1.99$ (approximately, according to my spreadsheet)