# How do you find abs(12-16i)?

$\left\mid 12 - 16 i \right\mid = \textcolor{g r e e n}{20}$
$\left\mid 12 - 16 i \right\mid = \sqrt{{12}^{2} + {\left(- 16\right)}^{2}} = \sqrt{122 + 256} = \sqrt{400} = 20$