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Dutch Mathematical Olympiad

Geometry Difficulty 4.8 AIME Find the answer Netherlands

In the left square, rectangle ABFEABFE is drawn. In the right square, rectangle PSRQPSRQ is drawn, where the sides QRQR and PSPS are parallel to the diagonal ACAC of the square. The sides of both squares have length 66. It turns out that the rectangles ABFEABFE and PSRQPSRQ have exactly the same dimensions.

Figure 1

What is the length of AEAE?

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

62−66\sqrt{2} - 6

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Source: MathNet, licensed CC-BY-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.