For the rest of this process, keep your compass set to this new, slightly larger setting.
When this is done, you should have two intersecting “eye” shapes.
When drawn, these lines, together with the lines through the corners of the other “eye”, should form a square.
If you’re trimming your paper, use a ruler to ensure accuracy. For instance, if you want to trim an 8 1/2 x 11 piece of paper into a square, you would use a ruler to measure 8 1/2 inches on the 11 inch side of the paper, then cut.
Note that you shouldn’t fold the corners all the way in. If you do, you’ll be left with a smaller square. Instead, fold the corners in about halfway to the center.
The exception to this rule is for angles of exactly 180o. Generally, the two line segments that make up such an angle can be considered a single edge in a polygon.
