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who invented, or came up with "pi" in math? How did they come up with the estimation of 3.14?
the order of pi up to the 35th place is as follows: 3.14159265358979323846264338327950419
The 42nd digit of pi is 6. (The first 43 digits of pi are 3.141592653589793238462643383279502884197169. If pi were rounded to the nearest 42 digits, then the 6 would be rounded up to a seven.)
William Jones, a Welsh mathematician, first used the pi symbol in 1706.
2*pi*radius = circumference 2*pi*radius = 13 Making the radius the subject of the formula is: radius = 13/(2*pi) = 2.06901426 feet Check: 2*pi*2.06901426 = 13 feet