#### Answer

$\frac{3\pi}{2}radians$

#### Work Step by Step

In order to convert degree measures to radians, we must multiply the given degree measure by $\frac{\pi}{180}$ and simplify.
$270^{\circ}=270\times(\frac{\pi}{180}radians)=\frac{270\pi}{180}radians=\frac{3\pi}{2}radians$