Find the norm of the vector .
$\left| \vec{v}\right|= 9$
$\left| \vec{v}\right|= \sqrt{29}\approx 5.385$
$\left| \vec{v}\right|= 2\sqrt{6}\approx 4.899$
$\left| \vec{v}\right|= \sqrt{9} = 3$
$\left| \vec{r}\right| = 16$
$\left| \vec{r} \ \right| = 3 \sqrt{10}$
$\left| \vec{r}\right| = 2 \sqrt{13}$
$\left| \vec{r}\right| = 4$
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