Answer:
Choice b is correct.
Explanation:
We have to find the area of trapezoid.
The formula for area of trapezoid is:
A = 1/2 (a+b )h
In the formula a and b are parallel sides and h is perpendicular height.
In the figure, a = 15 ft , b = 11 ft , h = 4√3 ft
Hence,
A = 1/2 (15+11)(4√3)
A = 1/2 (26)(4√3)
A = 52√3 ft² is the area of trapezoid.