# Three Parallel Semi-Circles _Posted on Jul 24, 2019_ +-- {.image} [[ThreeParallelSemiCircles.png:pic]] > The bases of all three semicircles are horizontal. If the yellow region has area $6$, what's the total blue area? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1153961306208313349) * [[three parallel semi-circles techniques]] * [[three parallel semi-circles solution]]