# Triangle in Semi-Circle with Square _Posted on Feb 11, 2019_ +-- {.image} [[TriangleinSemiCirclewithSquare.png:pic]] > The equilateral triangle sits in the centre of the semicircle. What's the area of the square? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1095028910293696513) * [[triangle in semi-circle with square techniques]] * [[triangle in semi-circle with square solution]]