Answer:
160.34 cm2 of paper
Step-by-step explanation:
To know how much paper Joe will need, we need to find the total area of the rectangular prism.
The prism has 6 faces, and their areas are:
face 1 and 2: 5.6 cm * 7.9 cm = 44.24 cm2
face 3 and 4: 5.6 cm * 8.6 cm = 48.16 cm2
face 5 and 6: 8.6 cm * 7.9 cm = 67.94 cm2
The total area of the prism is:
Area = 44.24 + 48.16 + 67.94 = 160.34 cm2
So Joe will need 160.34 cm2 of paper.
