# Zig-zag Triangles _Posted on Aug 12, 2018_ +-- {.image} [[ZigzagTriangles.png:pic]] > The yellow triangles are all right-angled. What fraction is orange? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1028643616300982272) * [[zig-zag triangles techniques]] * [[zig-zag triangles solution]]