3. (4 points) In a parallelogram with sides 4 and 7, the bisectors of the four interior angles are drawn. Find the ratio of the area of the quadrilateral formed by the intersection of the bisectors to the area of the parallelogram.
3. $\frac{S_{Q R T F}}{S_{A B C D}}=\frac{9}{56}$.

+ (4 points) - solution is correct.

+- (3 points) - solution is correct, but there are minor inaccuracies.

-+ (2 points) - solution is correct, but there are significant gaps (for example, it is not justified that the angle bisectors form a rectangle).