# Four Squares Around a Quadrilateral _Posted on Oct 7, 2018_ +-- {.image} [[FourSquaresAroundaQuadrilateral.png:pic]] > The four squares enclose a quadrilateral of area $10$. What's the total shaded area? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1048934237309734913) * [[four squares around a quadrilateral techniques]] * [[four squares around a quadrilateral solution]]