What is the c plus plus program to calculate the area of a circle using function overloading?

Answer 1

Function overloading is used when you want to re-use the same function name with different argument types or a different number of arguments. Calculating the area of a circle isn't the sort of function that requires overloading since the only argument you need is the radius.

double area_of_circle (const double radius)

{

const double pi=4*atan(1);

return pi*radius*radius;

}