I don't think you can figure out the area of this rhombus/parallelogram.
The area of a parallelogram is base, which we have, times height.
Picture the parallelogram with all the angles being 90 degrees. The area would be 54 square centimetres. Now imagine you can slide the top part of the parallelogram to the right, with the bottom fixed and all the corners on hinges. In theory, you can nearly slide the top down until it is just above the base. The area would approach zero, as the height of the parallelogram decreases.
Answers & Comments
I don't think you can figure out the area of this rhombus/parallelogram.
The area of a parallelogram is base, which we have, times height.
Picture the parallelogram with all the angles being 90 degrees. The area would be 54 square centimetres. Now imagine you can slide the top part of the parallelogram to the right, with the bottom fixed and all the corners on hinges. In theory, you can nearly slide the top down until it is just above the base. The area would approach zero, as the height of the parallelogram decreases.
Good luck,
Paul