In parallelogram ABCD, point S is the intersection point of its diagonals. The perimeter of ACDS is 5.6 cm smaller than the perimeter of ABCS. The angle bisector of ZBAD intersects segment BC in point...

Extracted text: In parallelogram ABCD, point S is the intersection point of its diagonals. The perimeter of ACDS is 5.6 cm smaller than the perimeter of ABCS. The angle bisector of ZBAD intersects segment BC in point M. Find the lengths of sides of the parallelogram if BM|: |MC = 7:4. (Solve this task without using Trigonometry)