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by Jack wears love COAT on January 2nd, 2008
Consider any circle of any radius.
The circumference of this circle always is little more than 3 times its diameter.
And this "little more" is always one-seventh of its diameter.
So the circumference is always 3+(1/7) of its diameter, which you can write as (21/7)+(1/7)=(22/7).
This value, 22/7 is called as "pi".
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Comments
Pi does not equal 22/7. If it did, it would be a rational number. 22/7 = 3.14285714
pi = 3.14159265
22/7 and pi only round to the same number (3.14)
by tsunami0603 on February 26th, 2009