Answer:
558 square units
Step-by-step explanation:
The best way to do this is to break this down into smaller rectanlges and find the area of those, and then add them together. To find side X (in attached picture) you would solve for X after setting up the equation X = 40 - (10+6) and you would get X= 24. To find side Y, you would solve for Y in the equation Y= 9 + (15-7) and get 17. For side Z it would be Z = 9 + 15 with Z = 24. Then you would simply use the length x width = area to find the area of rectangle A you would do 9 x 24 = 216. For rectangle B it would be 24 x 10 = 240. For rectangle C it would be 6 x 17 = 102 then all you would have to do is add 216 + 240 + 102. which equals 558 square units
