Given ABCD a parallelogram AB and 3 cm less than bc the perimeter is 48 cm find all sides.

1. The AB side is less than the BC side by 3 centimeters. Therefore, BC = AB + 3.
2.Considering that the sides of a parallelogram opposite each other) are equal, its perimeter (P) is calculated by the formula:
P = 2 (AB + BC) = 48 centimeters.
AB + BC = 24 centimeters.
3. Substitute in this expression (AB + 3) instead of BC:
AB + AB + 3 = 24 centimeters.
2AB = 21 centimeters.
AB = 10.5 centimeters.
BC = 10.5 + 3 = 13.5 centimeters.
4. AB = СD = 10.5 centimeters, BC = AD – 13.5 centimeters.