3.14….story of ‘π’ , a wonder pie!

What’s the pi ‘π’ of my pie🥧??🤔 Hi buddies👋…🙂Hope you’re enjoying your learning phase of life!.. A quick question..Can you guess which letter of the Greek Alphabet have been studied for more than 4000 years?… (Well🤓…it’s answer is hidden in the title!) ‘π’, a never-ending irrational number has always been inspiring many fields of Mathematics