# Inverse Star in a Rectangle _Posted on Mar 7, 2019_ +-- {.image} [[InverseStarinaRectangle.png:pic]] > All four triangles are equilateral. What fraction of the rectangle do they cover? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1103717536921800704) * [[inverse star in a rectangle techniques]] * [[inverse star in a rectangle solution]]