Answer:
(150-36π) ft^2
Step-by-step explanation:
we need to subtract the area of the circle from the area of the trapezoid to find the area of the shaded region.
area of circle=πr^2=π6^2=36π ft^2
area of trapezoid=(1/2)(a+b)h=(1/2)(12+13)12=150 ft^2
so, the area of trapezoid-area of circle=(150-36π) ft^2
