Thursday, 18 July 2013



#include "stdafx.h"
#include "conio.h"
#include "stdio.h"
#include "iostream"

using namespace std;

void Area_1();
void Area_2();
void Area_3();

int _tmain(int argc, _TCHAR* argv[])
{
        Area_1();
        Area_2();
        Area_3();
        getch();
}

void Area_1()
{
       float a,r,p;                  ////// a is area , r is radius and p is pi ( 3.14 )
       p=3.14;
       cout<<"enter radius1"<<endl;
       cin>>r;
       a=p*r*r;
       cout<<"a1="<<a<<endl;
}
void Area_2()
{
       float a,r,p;
       p=3.14;
       cout<<"enter radius2"<<endl;
       cin>>r;
       a=p*r*r;
       cout<<"a2="<<a<<endl;
}
void Area_3()
{
       float a,r,p;
       p=3.14;
       cout<<"enter radius3"<<endl;
       cin>>r;
       a=p*r*r;
       cout<<"a3="<<a<<endl;

}
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