# Circle and Semi-Circle in Triangle _Posted on Feb 18, 2019_ +-- {.image} [[CircleandSemiCircleinTriangle.png:pic]] > What's the area of the semicircle inside this equilateral triangle? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1097431756653977600) * [[circle and semi-circle in triangle techniques]] * [[circle and semi-circle in triangle solution]]