Question

Each side length of the parallelogram at the right is multiplied by 4. Describe the change in the parameter. Justify your answer.

Answer 1

side length1 = x

side length2 = y

2x + 2y = perimeter

2(4x) + 2(4)y = new perimeter

8x + 8y = new perimeter

new perimeter = 4 times the old perimeter