To find the area of this irregular shape, you divide it up into regular shapes and find the area as if it was a regular rectangle. Length times width. So first you would do 40 times 30 which is 1200. Then you would do 20 times 24, which is 480. Where did I get twenty four? I subtracted 40 from 64 to get the missing length. Lastly, we add 480 and 1200 to get 1680. That's the area. 1680.
