Answer:
1 Foot squared.
Step-by-step explanation:
You started this out the best way, by dividing the parallelogram into triangles.
What you do after that is the standard way of finding the area of a triangle, which is base times height, divided by 2.
You take the base, in this case, 3, and multiply it by the height, which is 2/3, or 0.66. The result is 2.
You then take 2, and divide it by two, which comes out to 1 foot.
