C Program to find area and circumference of Circle

Make a simple c program to find the area and circumference of the circle by inputting the radius of the circle.Below is the sample of the C program with solution –

/*C program to find the area and circumference of circle*/
#include<stdio.h>
void main()
{
     float r,pi=3.14,cir,area;

     printf("Enter the Radius of the circle \n");
     scanf("%f",&r);

     cir=2*pi*r;
     area=pi*r*r;

     printf("\n Circumference of circle is \t %f",cir);
     printf("\n Area of circle is \t %f",area);
     getch();
}

Input –
Enter the radius of the circle – 3

Output –
Circumference of circle is 18.84
Area of circle is 28.26

yashan has written 70 articles

8 thoughts on “C Program to find area and circumference of Circle

  1. altaf says:

    int main() and void main() both are same its like you are telling the os that main is giving some thing and at last it gives 0 and in case of void main() you are specifying that your main does not return any thing .thatz it int is old style of coading and void main is the new style

  2. Forrest says:

    This post is very informative but it took me a long time
    to find it in google. I found it on 22 spot,
    you should focus on quality backlinks building, it will help you to rank to google top 10.
    And i know how to help you, just search in google
    – k2 seo tips

Cancel reply

Leave a Reply to Etta

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>