The side length of a diamond is equal to that of an isosceles right triangle. If an inner angle of the diamond is 30 degrees, the ratio of the area of the diamond to that of the isosceles right triangle is 0______ .

The side length of a diamond is equal to that of an isosceles right triangle. If an inner angle of the diamond is 30 degrees, the ratio of the area of the diamond to that of the isosceles right triangle is 0______ .

Let the side length of the diamond be a, then the area of the isosceles right triangle is 12a2, the height of the side length of the diamond is 12a, and the area is equal to 12a2, so their area ratio is 1:1