Answer:
26000 ft²
Step-by-step explanation:
The area of the unshaded part is calculated as
Area of outer rectangle - area of square - area of triangle
outer area = 300 × 150 = 45000 ft²
area of square = 100² = 10000 ft²
area of triangle = [tex]\frac{1}{2}[/tex] × 120 × 150 = 60 × 150 = 9000 ft²
Thus
unshaded area = 45000 - 10000 - 9000 = 26000 ft²
