[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here we go ~
Let's use Trigonometric ratios to find p :
[tex]\qquad \sf \dashrightarrow \: \cos(60) = \cfrac{6}{p} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{1}{2} = \dfrac{6}{p} [/tex]
[tex]\qquad \sf \dashrightarrow \: p = 6 \times 2[/tex]
[tex]\qquad \sf \dashrightarrow \: p = 12 \: \: units[/tex]
