static void Main(string[] args) { area_and_the_circumference_of_a_circleClass mathFunctions = new area_and_the_circumference_of_a_circleClass(); Console.WriteLine($"{mathFunctions.Cube(Math.PI):F3}"); }
static void Main(string[] args) { area_and_the_circumference_of_a_circleClass mathFunctions = new area_and_the_circumference_of_a_circleClass(); Console.WriteLine($"{mathFunctions.Cube(Math.PI):F3}"); }