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The figure below shows regular hexagon ABCDEF contained within rectangle GHJK.

If each side of ABCDEF is 6 meters, what is the area of GHJK, in square meters?

$36$

$ {72\sqrt { 2 } } $

$ {72\sqrt {3} } $

$ 36 + {36\sqrt { 2 } } $

$ 36 + {36\sqrt { 3 } } $