Let $IJKLMN$ be a hexagon with side lengths $IJ = LM = 3,$ $JK = MN = 3,$ and $KL = NI = 3$. Also, all the interior angles of the hexagon are equal. Find the area of hexagon $IJKLMN$.
We have 6 equilatera ltriangles with sides =3
The area = 6 (1/2) *3^2 * sqrt 3 /2 = (27/2)sqrt 3