Write a program to find the area and circumference of a circle

#include<iostream.h> 

#include<conio.h> 

void main( )

{

float radius, area, circumference;

clrscr( );

cout<<"Enter the radius:"; cin>>radius;

area = 3.142 * radius * radius;

circumference = 2 * 3.142 * radius;

cout<<"Area of circle = "<<area<<endl;

cout<<"Circumference of circle = "<<circumference<<endl;

getch();

}