# A Construction of the Square Root of Seven

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This Demonstration shows a construction of and such that .

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Contributed by: Marko Razpet and Izidor Hafner (June 2018)

Open content licensed under CC BY-NC-SA

## Details

The ratio appears in Pappus's hexagons problem.

References

[1] T. Heath, *A History of Greek Mathematics, Volume II: From Aristarchus to Diophantus*, New York: Dover Publications, 1981.

[2] A. Ostermann and G. Wanner, *Geometry by Its History*, New York: Springer, 2012.

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