What is the perimeter of the trapezoid in centimeter?

To calculate the perimeter of a trapezoid, you need to sum the lengths of all its sides. If the lengths of the two parallel sides are ( a ) and ( b ), and the lengths of the non-parallel sides are ( c ) and ( d ), the formula is: Perimeter = ( a + b + c + d ). Please provide the lengths of the sides for a specific answer.