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Triquetra


Triquetra

The triquetra is a geometric figure consisting of three mutually intersecting vesica piscis lens shapes, as illustrated above. The central region common to all three lenses is a Reuleaux triangle.

The triquetra has perimeter

 p=3pia

and its interior has area

 A=1/2(2pi-sqrt(3))a^2.

See also

Circle-Circle Intersection, Johnson's Theorem, Reuleaux Triangle, Venn Diagram, Vesica Piscis

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Cite this as:

Weisstein, Eric W. "Triquetra." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Triquetra.html

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