Answer:
279 sq. ft
Step-by-step explanation:
Split this up into 3 rectangles
The bottom can be 3*5=15
The huge one in the middle would be 15+3 times 10+3 which is 234
The one on the top right would be 10*3=30
Add them together: 15 + 234 + 30 = 279 sq. ft
