The perimeter is 11 inches.
One side is 2 inches shorter, so two sides would be 4 inches shorter total.
Subtract 4 from 11 to get 7 inches.
Divide 7 by 4 ( the number of sides):
7 / 4 = 1.75
The shorter side is 1.75 inches.
Now add 2 inches to that for the longer side:
1.75 + 2 = 3.75 inches.
Check: 3.75 + 3.75 + 1.75 + 1.75 = 11
The longer side is 3.75 inches.