Answer:
88 ft²
Step-by-step explanation:
Area of larger square
10 × 8 = 80
10 × 8 because 10 is the length and 8 because the 6 and 2 rectangle is missing so it wouldn't be 10 × 10
4 × 2 = 8
4 × 2 = 8 because we need to work out the area of the smaller rectangle
80 + 8 = 88
