We can decomposite the parallelogram into two right triangles and one rectangle. To find the total area we have to calculate the area of each figure and add them.
• Area of the right triangles (At):

where the first number 2 represents the two triangles, x represents the base of the triangles and h the height. Solving for At:

• Area of rectangle (Ar):

where y represents the base of the rectangle and h represents the height of the rectangle. Solving for Ar:

Finally, finding the area of the parallelogram (Ap):

Answer: 160 units²