Art of Problem Solving
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2023 AMC 8 Problems/Problem 2: Difference between revisions

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==Problem==
==Problem==
A square piece of paper is folded twice into four equal quarters, as shown below, then cut along the dashed line. When unfolded, the paper will match which of the following figures?
A square piece of paper is folded twice into four equal quarters, as shown below, then cut along the dashed line. When unfolded, the paper will match which of the following figures?
[[Image:2023 AMC 8-2.png|thumb|center|800px]]
[[Image:2023 AMC 8-2.png|thumb|center|400px]]


==Solution 1==
==Solution 1==

Revision as of 05:24, 25 January 2023

Problem

A square piece of paper is folded twice into four equal quarters, as shown below, then cut along the dashed line. When unfolded, the paper will match which of the following figures?

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Solution 1

Take a paper and fold it using the given conditions to see the resulting answer -apex304

Solution 2

Notice how the paper is folded. The bottom right corner of the twice-folded paper has to be the middle of the unfolded paper. So if you cut it in the way that it is shown in the problem, you find (it has to be symmetrical) that the cuts make a square centered in the middle of the paper.

-claregu