A classroom floor is in the shape of a trapezoid and needs to be tiled. One of the parallel
sides of the room measures 25 feet and the opposite side measures 19 feet. The distance
between these sides is 21 feet. Which answer represents the area of the classroom floor?
Show how you determined your answer.

A. 462 ft²
B. 475 ft2²
C. 924 ft²
D. 950 ft²