https://instagram.com/mathemagician_19?igshid=NTc4MTIwNjQ2YQ==
πr^2
https://www.instagram.com/reel/CqwzeLrvopZ/?igshid=NTc4MTIwNjQ2YQ==
https://twitter.com/tiikituukahana/status/1655868310188347392?s=61
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