aryabhatta discovered it as 3.1416. value of i is 22/7
Consider a distribution with an unknown parameter pi. If the true value of pi is not known but has been estimated, then the estimated value is usually denoted by pi-hat. This is to distinguish between a known parameter and an estimated one.
The surface area of a cylinder can be found using the following formula - SA = 2(Pi*r2) + (2*Pi*r)*(H) Pi = Approximately 3.14 r = Radius of the base of the cylinder H = Height of the cylinder
2 x pi x r
2 pi r h
3.1416
john wallis
There is no formula for Pi, it cannot be represented by any formula. It is a fundamental constant.
The value of pi is the circumference of a circle divided by its diameter
Evopi = evw/pi – evw/o pi
Pi is the value of a circle's circumference divided by its diameter and its true value has never been discovered because it is an irrational number
Srinivasa Ramanujan
A formula is used to find the numeric value of an answer. For example: pi*radius2 = area of a circle in square units
The circumference is found by doubling the radius, and multiplying that number by the value of PI. The formula is Pi x 2rThe area is found by squaring the radius, then multiplying that number by the value of Pi. The formula is Pi x r2 The letter r in both cases represents the radius.
archimedes, pi is the name of the greek letter p, which was used as the shortened version of the greek word perimeter,or circumference of a circle. archimedes was looking for a formula to find the area of a circle, and he required a more accurate value for the constant pi. previously pi had been assigned a very approximate value of 1/3 or 22/7.
budhayana
Tricycle
the circle