Answer
12 $ft^{2}$
Work Step by Step
Given Altitude length of trapezoid = 5$\frac{1}{3}$ ft
the length of the median of the trapezoid = 2$\frac{1}{4}$ft
We know the area of the trapezoid whose altitude has length h and whose median has length m is A= hm
therefore Area of trapezoid = hm
= 5$\frac{1}{3}$ ft * 2$\frac{1}{4}$ft
= $\frac{16}{3}$ * $\frac{9}{4}$
= 12 $ft^{2}$
