Pi as a letter in the greek alphabet that was used from early 8th century BC. If you are refering to the mathematical constant pi it was known even earlier than 20th century BC. If you want to connect these two as in usage of pi as the symbol for the mathematical constant then that was done in the early 1700s and made popular by Euler in the mid 1700s. Pie as a word is first found in the 12th century english, and I think that the pastry itself has some longer history, but I doubt it goes earlier than the 8th century BC.
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647 Those are the first 120 digits of Pi
If you mean the number pi, pi + pi is usually written as 2pi.
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PI is a math term and pie is a food Pie tastes better. I do however wish pie never ended, but that would be irrational.
First of all it is NOT 'pie', that is the meat pie or apple pie that you eat. The circular 'pi' is 'pi' (small/lower case) . 'pi' is the Classical Greek letter for lower case 'p', and means 'constant of **P**roportion'. To find the circumference of a circle the equation is C = pi d Circumference equals 'pi' X the diameter. or C = 2 pi r Circumference equals 'pi' X '2' X the radius.
It is PI first of all. 3.14159265358979323846...
Well first of all you spelt pie wrong the mathmetical term of pi is spelt pi. It is also what you use to measure the radius of a circle.
you spell pie and invented wrong answer: 1981
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647 Those are the first 120 digits of Pi
If you mean the number pi, pi + pi is usually written as 2pi.
pie or mousse pie
Pi is 3.1415926535... Pie is a dessert
Pi and pie have nothing to do with each other except for the fact that they have the same pronunciation. pi is a number. to be exact pi is .14159264............ pie is a yummy dessert that can be pumpkin apple cherry........
Pi pie. It has a cooling smell of 3.14159265 dot dot dot.
Bake a pi pie!
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first of its pi not pie and it is 3.141592654 ahh im to bored to write the rest but just look on Google.