Answer: B. [tex]337.5\text{ ft.}^2[/tex]
Step-by-step explanation:
The area of trapezoid is given by :-
[tex]\text{Area}=\dfrac{1}{2}h(a+b)[/tex], where a and b are the parallel sides and h is the height.
From the given picture, we have
Height (h) = 15 ft
a = 20 ft.
b = 25 ft.
Then , the area of trapezoid is given by :-
[tex]\text{Area}=\dfrac{1}{2}(15)(20+25)\\\\\Rightarrow\text{Area}=337.5\text{ ft.}^2[/tex]
Hence, the area of trapezoid is [tex]337.5\text{ ft.}^2[/tex]
