Gabriel's horn is a solid of revolution that has a finite volume but an infinite surface area.pic.twitter.com/p9xYUpvJ2B
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Nice catch! Yes it should be. Luckily the inequality still holds for that case as well.