Question

Why have people created pi? I know that pi means 3.14159265 and it goes on. But why is it created $\pi$?

Answer 1

PI WAS CREATED BY ARYABHATTA. IT IS THE RATIO BETWEEN CIRCUMFERENCE(PERIMETER OF CIRCLE) AND DIAMETER.

Answer 2

Being an irrational number, π cannot be expressed exactly as a common fraction, although fractions such as 22/7 and other rational numbers are commonly used to approximate π. Consequently its decimal representationnever ends and never settles into a permanent repeating pattern. The digits appear to be randomly distributed although, to date, no proof of this has been discovered. Also, π is a transcendental number – a number that is not the root of any non-zero polynomial having rational coefficients. This transcendence of π implies that it is impossible to solve the ancient challenge of squaring the circle with a compass and straight-edge.

Hope this helped.  :)