area and circumference of circle.c

/*
Student name: Rohit Maharjan
Subject : Programming Fundamentals
Roll no:23
Sheet :3
Program : Write a c program to calculate the area and circumference of circles having radius r. r should be taken from the user
Date: 18 november 2016
*/
#include<stdio.h>
#include<conio.h>
int main (){
float r,area,circumference;
printf(Enter the radius:\n");
scanf("%f",&r);
area=3.14*r*r;
circumference=2*3.14*r;
printf("Area of the circle is:%f\n",area);
printf("Circumference of the circle is:%f\n",circumference);
getch();
return 0;
}