Sydney is cutting the crust from the edges of her sandwich. the dimensions, in centimeters, of the sandwich is shown.

a rectangle labeled sandwich. the right side is labeled 2 x squared + 9. the bottom side is labeled 2 x squared + 8.
which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

8x2 + 34; 43.6 centimeters
8x2 + 34; 45.52 centimeters
4x2 + 17; 21.8 centimeters
4x2 + 17; 22.76 centimeters