Radian Memorization

The specifics of memorizing a radian measurement and its trigonometric ratio pairings.

${\theta }^o$	${\theta }_{rad}$	sin$\theta$	cos$\theta$	tan$\theta$
$30^o$	$\frac{\pi }{6}$	$\frac{1}{2}$	$\frac{\sqrt{3}}{2}$	$\frac{1}{\sqrt{3}}$
$60^o$	$\frac{\pi }{3}$	$\frac{\sqrt{3}}{2}$	$\frac{1}{2}$	$\sqrt{3}$
$90^o$	$\frac{\pi }{2}$	$1$	$0$	$undefined$