Answer:
b. 2.376 square feet
Step-by-step explanation:
In the figure attached, the prism is shown.
Area of the bottom rectangle: 40*24 = 960 square feet
Area of the two side rectangles: 2*40*15 = 1200 square feet
Area of the two triangles: 2*24*9/2 = 216 square feet
Surface area of the triangular prism = 960 + 1200 + 216 = 2376 square feet
