# Triangle in a Rectangle _Posted on Jan 29, 2021_ +-- {.image} [[TriangleinaRectangle.png:pic]] > The three marked angles are equal. What fraction of the rectangle is shaded? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1355086564523704321) * [[triangle in a rectangle techniques]] * [[triangle in a rectangle solution]]