User talk:Harsh Singh Tech

May 2017
Hello, I'm Dan D. Ric. An edit that you recently made to Triangular prism seemed to be a test and has been removed. If you want more practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Dan D. Ric (talk) 12:47, 23 May 2017 (UTC)