RegionConvert
RegionConvert[reg, form] converts the region representation reg to the specified form.
Examples
Convert to mesh region:
RegionConvert[Disk[], MeshRegion]Convert to boundary mesh:
RegionConvert[Ball[], BoundaryMeshRegion]Convert to implicit form:
RegionConvert[Rectangle[], ImplicitRegion]Please visit the official Wolfram Language Reference for more details.