To find the surface area, Brad splits the figure into two pieces, the rectangular prism and the triangular prism. He finds the total surface area of the rectangular prism by finding the area of each face to get 1,104 cm?.
He then finds the total surface area of the triangular prism by finding the area of each face to get 1,008 cm².
Finally, he adds the surface areas together to get 2,112 cm?.
Is Brad's solution correct? Why or why not?