Isosceles Triangle Tessellation
With a glide reflection and a midpoint rotation. There's a video of making this tessellation, especially handy if you are struggling with insomnia: https://youtu.be/baRMeX_fd_U. It's for a post at Henri Picciotto's MathEd.page (link to follow)
![Image](https://stage.geogebra.org/resource/qtxzvepg/Ipk747tFfPp3zKm2/material-qtxzvepg.png)