Answer to Question #265485 in C++ for fiona

Question

Using while or do-while. The Area of a Circle = pi *(r*r). Where pi=3.1415 and r=Radius, Make a program that will input Radius and compute and display the Area. Your program will be terminated if input zero in the radius.

Answer 1

#include <iostream>
#include <iomanip>


using namespace std;




int main()
{
	float const pi=3.1415;
	float r=1;
	while(r>0){
		cout<<"Enter the raduius of the circle: ";
		cin>>r;
		if(r>0){
			float area=pi*r*r;
			cout<<fixed<<"The Area of a Circle = "<<setprecision(2)<<area<<"\n\n";
		}
	}


	return 0;
}