Sam created a porch that was part wooden and part concrete, as shown in the figure below. Note: Figure not drawn to scale If a =
21 ft, b = 28 ft, and c = 35 ft, what is the total area of the porch? Assume that the wooden part is a right triangle and the concrete part is a square. A. 1,519 ft2 B. 1,715 ft2 C. 217 ft2 D. 119 ft2