# How do you convert (4, 0) into polar coordinates?

$4 \angle {0}^{\circ}$
Since the length from the origin to the point $\left(4 , 0\right)$ on the real axis (positive x-axis) is 4 units, and the nagle it makes with the real axis is ${0}^{\circ}$, it implies that in polar form it is $4 \angle {0}^{\circ}$.