C Language Program to find Area and Perimeter of a Circle.

C - SIMPLE  PROGRAMS

3: C Language Program to find Area and Perimeter of a Circle.

#include<stdio.h>

#include<conio.h>

#include<math.h>

main( )

{

float pi=3.1416,r,area,per;

printf("\nEnter the Value of Radius : ");

scanf("%f",&r);

area=pi*pow(r,2);

per=2*pi*r;

printf("\nArea = %f\n",area);

printf("\nPerimeter = %f",per);

getch( );

}