Two position vectors lie in a plane. The first, vector rA$,$ points at an angle of $20\backslash$deg below the positive x$-$axis and has a magnitude of $48\mathrm{.}5$ m$.$ The second, vector rB$,$ points at an angle of $53\mathrm{.}0\backslash$deg above the positive x$-$axis and has a magnitude of $75$ m$.$ What is the magnitude and direction of vector rC$?$ Give the direction as an angle measured counterclockwise from the positive x$-$axis?