The side of square ABCD is 3. If each of the four sides is a hypotenuse of an isosceles right triangle, then what is the sum of the area of the four isosceles right triangles?
The side of square ABCD is 3. If each of the four sides is a hypotenuse of an isosceles right triangle, then what is the sum of the area of the four isosceles right triangles?