It is known that the quadrilateral ABCD is a parallelogram, and the diagonal lines AC and BD intersect at point O. it is known that the perimeter of the parallelogram is 48 cm, The perimeter of triangle cod is 4cm longer than that of triangle AOD, so the length of AB and ad can be calculated

It is known that the quadrilateral ABCD is a parallelogram, and the diagonal lines AC and BD intersect at point O. it is known that the perimeter of the parallelogram is 48 cm, The perimeter of triangle cod is 4cm longer than that of triangle AOD, so the length of AB and ad can be calculated

Let the perimeter of triangle cod be a and the perimeter of triangle AOD be B, then a = CD + CO + OD, B = AD + Ao + OD, because co = OA, A-B = 4, namely cd-ad = 4. Let ad = x, then CD = 4 + X, 2 * (x + 4 + x) = 48;
So x = 10, so ad = 10, ab = CD = 14