# Three Congruent Triangles _Posted on Oct 29, 2019_ +-- {.image} [[ThreeCongruentTriangles.png:pic]] > Three congruent triangles. The black line bisects the top angle. What angle does this line make with the horizontal? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1189109764455837697) * [[three congruent triangles techniques]] * [[three congruent triangles solution]]