Link to the Rhombus: Rhombus with given side lengths of 11 and a height of 8
Edit: I just realized that this rhombus is a parallelogram so because the 8 inches is the height and that the 11 inches is the base, I can simply times the 8 inches by the 11 inches to make 88 inches^2, so I think the answer is 88 inches^2.
Notice that there is a square of 8 inch sides inside of the rhombus. Calculate the area of the square first and then the area of the two other triangles that make up the rhombus.