Question 14Two equilateral triangles are contained in a square whose side length is $2\sqrt 3.$ The bases of these triangles are opposite sides of the square, and their intersection is a rhombus. What is the area of the rhombus?$ \dfrac{3}{2} $$ \sqrt 3 $$ 2\sqrt 2 - 1 $$ 8\sqrt 3 - 12 $$ \dfrac{4\sqrt 3}{3} $