Area Of Circle

in Hindi - Area Of Circle



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Source Code :

RUN#include<iostream.h>
#include <conio.h>
using namespace std;

int main(){

int r;
float PI=3.145, area;

cout<< "Enter radius of circle";
cin>>r;

area=PI*r*r;
cout<<"Area of circle is "<<area;

return 0;
}