Answer:
1080, but just choose 1086m^
Explanation:
Find the area of the green huge square.
36 x 36 = 1296
After that, find the area of the small square inside of the green huge square.
14 x 15 = 210
Find the difference of both squares.
1290 - 210 = 1080
I don't know why there isn't a 1080, but just choose 1086.