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 PiscisExplore with Wolfram|Alpha
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Cite this as:
Weisstein, Eric W. "Triquetra." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Triquetra.html