Answer:
6 ft²
Step-by-step explanation:
The area of the outer rectangle = 80 ft²
Area of the inner rectangle = 68 ft²
The area that lies between the inner and outer rectangles
= Area of outer rectangle - Area of inner rectangle
= 80 - 68
= 12 ft²
The shaded region is half the area of this area
= 12/2
= 6 ft²
