C program to calculate circumference of a circle having radius r which should be taken from the user. June 18, 2018 CODES: View the code on Gist. OUTPUTS: Enter the radius of circle:12 the circumference of circle is :75.43 GET FREE UPDATES !!! I agree to have my personal information transfered to MailChimp ( more information ) Join over 1K visitors who are receiving our newsletter.Lets learn the codes and the programmings easily in an instant rate.Grab the full opportunity to learn and browse this sites for free because you don't have to pay even a single cent to look it for. Stay tuned and connect with us daily.We hate spam. Your email address will not be sold or shared with anyone else.@programmingfaster teams.