If the diagonals of the parallelogram ABCD intersect at point O, △ AOB is an equilateral triangle and ab = 3, then the area of the parallelogram ABCD is () and the perimeter is( Tell me why
Area: 9 √ 3 Perimeter: 6 + 6 √ 3
Area: 9 √ 3 Perimeter: 6 + 6 √ 3