Here is Elena’s work for finding the surface area of a rectangular prism that is 1 foot by 1 foot by 2 feet.
rectangular prism. written "top & bottom: 2 times 12 times 12 = 2 times 144 = 288. four side faces: 4 times 2 times 1 = 8. top face 12 inches by 12 inches. Bottom face 1 foot by 1 foot. height 2 feet.
She concluded that the surface area of the prism is 296 square feet. Do you agree with her? Explain your reasoning.