(self)
return self._radius
Radius of the RegularPolygon

        This is also the radius of the circumscribing circle.

        Returns
        =======

        radius : number or instance of Basic

        See Also
        ========

        sympy.geometry.line.Segment.length, sympy.geometry.ellipse.Circle.radius

        Examples
        ========

        >>> from sympy import Symbol
        >>> from sympy.geometry import RegularPolygon, Point
        >>> radius = Symbol('r')
        >>> rp = RegularPolygon(Point(0, 0), radius, 4)
        >>> rp.radius
        r
Radius of the RegularPolygon
Radius of the RegularPolygon
def radius(self):
        """Radius of the RegularPolygon

        This is also the radius of the circumscribing circle.

        Returns
        =======

        radius : number or instance of Basic

        See Also
        ========

        sympy.geometry.line.Segment.length, sympy.geometry.ellipse.Circle.radius

        Examples
        ========

        >>> from sympy import Symbol
        >>> from sympy.geometry import RegularPolygon, Point
        >>> radius = Symbol('r')
        >>> rp = RegularPolygon(Point(0, 0), radius, 4)
        >>> rp.radius
        r

        """
        return self._radius
def radius ( self ) : return self . _radius