A line $l$ has equation $y = 6 - 2 x$
A second line is perpendicular to $l$ and passes through the point $( - 6,0 )$.
Find the area of the region enclosed by the two lines and the $x$-axis.
A $16 \frac { 1 } { 5 }$
B 18
C $21 \frac { 3 } { 5 }$
D 27
E $\quad 40 \frac { 1 } { 2 }$