Find the square root of 0.0169.

$\sqrt{0.0169} = \sqrt{\dfrac{169}{10000}}\\[1em] = \dfrac{\sqrt{169}}{\sqrt{10000}}\\[1em] = \dfrac{\sqrt{13\times13}}{\sqrt{10\times10}}\\[1em] = \dfrac{13}{100}\\[1em] = 0.13$

$\sqrt{0.0169} = 0.13$