Answer :
Rosa is correct. The perimeter of a parallelogram can be determined by adding the two sides and doubling the sum.
What is a paralleogram?
A parallelogram is a quadrilateral (a four-sided object) that is made up of parallel sides. Theopposite sides and angles are congruent .
The perimeter of the parallelogram is the distance round the shape. It is the sum of the four sides.
To learn more about the perimeter, please check: https://brainly.com/question/3205029