# Triangle and Semi-Circle in a Circle _Posted on Sep 29, 2018_ +-- {.image} [[TriangleandSemiCircleinaCircle.png:pic]] > The semicircle and equilateral triangle have the same base. What fraction of the circle is shaded? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1045958825730347010) * [[triangle and semi-circle in a circle techniques]] * [[triangle and semi-circle in a circle solution]]