Answer:
[tex] 216 \sqrt{3} \: {in}^{2} [/tex]
Step-by-step explanation:
[tex]Area \: of \: regular \: hexagon \\ = \frac{ 3 \sqrt{3} }{2} {side}^{2} \\ = \frac{ 3 \sqrt{3} }{2} \times {12}^{2} \\ = \frac{ 3 \sqrt{3} }{2} \times 144 \\ = { 3 \sqrt{3} } \times 72 \\ = 216 \sqrt{3} \: {in}^{2} \\ [/tex]
