Question

HI, PLEASE EXPLAIN ME WHAT IS PI?

Answer 1

The number π (/pɪ/) is a mathematical constant. Originally defined as the ratio of a circle's circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. ... The symbol used by mathematicians to represent the ratio of a circle's circumference to its diameter is the lowercase Greek letter π, sometimes spelled out as pi, and derived from the first letter of the Greek word perimeters, meaning circumference

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Answer 2

Step-by-step explanation:

Pi is a mathematical constant usually used to define the circumference of a circle to it's diameter.It is the number you get if you divide the circumference of any circle by its diameter.It is denoted by the symbol π.

It's value is 22/7 or 3.14

It can be used to find the area of circle by the formula = πr∧2 (wherer is the radius of a circle)

and the circumference of a circle =2πr (where r is the radius of a circle)

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