# Three Triangles in a Circle in a Triangle _Posted on Oct 24, 2020_ +-- {.image} [[ThreeTrianglesinaCircleinaTriangle.png:pic]] > All four triangles are equilateral. What fraction of the largest triangle is shaded? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1320013669909016576) * [[three triangles in a circle in a triangle techniques]] * [[three triangles in a circle in a triangle solution]]