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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

We know that there are two pie to get the perimeter and area of a circle (i.e 22/7 and 3.14 ) and we use different value to solve different numbers then

how we know that where to use which value with the help of length of radius , diameter etc. .And as we know rational number means p/q where q not equal to zero then why 22/7 is not considered as a rational number.

22/7 is considered as the value of pie. it is just an assumption. even the great mathematicians couldn't tell the correct value of pie even for today. so , 22/7 is just taken as an assumption