# Triangle in Circle in Triangle in Semi-Circle _Posted on Aug 15, 2018_ +-- {.image} [[TriangleinCircleinTriangleinSemiCircle.png:pic]] > A triangle in a circle in a triangle in a semicircle ... what's the angle? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1029760468406157313) * [[triangle in circle in triangle in semi-circle techniques]] * [[triangle in circle in triangle in semi-circle solution]]