Final answer:
The surface area of Hannah's rectangular prism is 104 cm².
Step-by-step explanation:
The surface area of a rectangular prism is found by calculating the sum of the areas of all six faces. The formula to find the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh
where l is the length, w is the width, and h is the height of the prism.
For Hannah's prism, the length is 7 cm, the width is 2 cm, and the height is 6 cm. Plugging these values into the formula gives:
Surface Area = 2(7)(2) + 2(7)(6) + 2(2)(6) = 104 cm²