# Arcs in a Semi-Circle _Posted on Jan 30, 2020_ +-- {.image} [[ArcsinaSemiCircle.png:pic]] > The two red arcs are the same length. What fraction of the semicircle is shaded? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1223010993409875968) * [[arcs in a semi-circle techniques]] * [[arcs in a semi-circle solution]]