A 48-faced polygon.
Octatetracontagon
See also
Disdyakis Dodecahedron, Great RhombicuboctahedronExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Octatetracontagon." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Octatetracontagon.html