Answer:
96 ft³
Explanation:
The front face can be considered as a 5×10 rectangle with a 3×6 rectangle cut from it. Then its area is ...
A = (5×10) -(3×6) = 32 . . . square feet
The volume of a prism of uniform cross section is ...
V = Bh . . . . . where B is the area of the base, and h is the height
Our figure has a base area of 32 square feet and a height of 3 feet, so its volume is ...
V = (32 ft²)(3 ft) = 96 ft³