# Four Parallel Semi-Circles _Posted on Mar 20, 2021_ +-- {.image} [[FourParallelSemiCircles.png:pic]] > The bases of all $4$ semicircles are parallel, and the largest one has diameter $8$. What’s the total shaded area? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1373193642945474560) * [[four parallel semi-circles techniques]] * [[four parallel semi-circles solution]]