Question
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Are the areas of the two shieets of paper ever the same after each being folded \( n \) times? Explain how you know.

Ask by Park Newton. in the United States
Mar 18,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

After each fold, both sheets of paper have the same area, which is half of their original size. So, their areas remain equal after any number of folds.

Solution

To determine if the areas of the two sheets of paper are ever the same after each being folded \( n \) times, we need to consider the process of folding and how it affects the area of the paper. When a sheet of paper is folded, the area of the paper is reduced by half with each fold. This is because the folded paper creates a new layer on top of the original paper, effectively halving the area. Let's consider the areas of the two sheets of paper after each fold: 1. After the first fold, the area of the first sheet of paper is reduced to half, and the area of the second sheet of paper is also reduced to half. 2. After the second fold, the area of the first sheet of paper is reduced to a quarter, and the area of the second sheet of paper is also reduced to a quarter. 3. After the third fold, the area of the first sheet of paper is reduced to an eighth, and the area of the second sheet of paper is also reduced to an eighth. From this pattern, we can see that after each fold, the areas of both sheets of paper are reduced by half. This means that the areas of the two sheets of paper are never the same after each being folded \( n \) times. Therefore, we know that the areas of the two sheets of paper are never the same after each being folded \( n \) times because the area of each sheet is reduced by half with each fold.

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Beyond the Answer

When you fold a sheet of paper, each fold generally halves one dimension of the paper while keeping the other dimension constant. For example, if you fold a standard letter-sized paper (8.5 x 11 inches) in half, the new dimensions become 4.25 x 11 inches. If both sheets are folded the same number of times, their areas will remain proportional to their original areas, but not necessarily equal. Therefore, unless the two sheets of paper initially have the same area, their areas will not be the same after being folded \( n \) times. To illustrate, let's say the first paper is 8.5 x 11 inches (area = 93.5 square inches) and the second paper is 5.5 x 8.5 inches (area = 46.75 square inches). Folding both papers won't make their areas equal since they started with unequal areas. So, they’ll just be smaller, but still different! So, no matter how many times you fold them, if they start unequal, they'll always be unequal!

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