##### Question 4.2.20

A poem written by Madhava of Sangamagrama says, ‘$2,\!827,\!433,\!388,\!233$ is, as the wise say, the circumference of a circle whose diameter is $900,\!000,\!000,\!000$’. The ratio of a circle’s circumference to its diameter is a very important number which we’ll be studying later, called ‘pi’. Find pi to ten decimal places. Show answer