User talk:Pewdiepie1223

May 2020
Hello, I'm S.Hinakawa. An edit that you recently made to Heron's formula seemed to be a test and has been removed. If you want to 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! --  S. Hinakawa  (talk) 16:21, 31 May 2020 (UTC)