write a program to find area and perimeter of circle.

#include<stdio.h>
main( )
{
float rad,area,perimeter;
printf("enter radius of a circle:");
scanf("%f",&rad);
area=3.14*rad*rad;
perimeter=2*3.14*rad;
printf(" Area of circle =%f  and Perimeter =%f",area,perimeter);
}