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Is 3.1415926535 pi?
Yes, though most people round pi to 3.14, since pi is an infinite number. It continues farther: 3.14159265358979323846264338327950288419716939937510 :)
What does Pi mean in mathermathics?
Pi is a number that is never ending, but most people only use the first couple of digits. pi = 3.14159265 pi is the ratio of a circles' diameter to its circumference
What formula is used to find the diameter or radius of a circle when you know the area?
Area = pi*r*r where pi = 3.14159 (approx)So r2 = A/piso r = + sqrt(A/pi) - clearly, the negative square root, giving a negative radius is nonsense.And then d, if required, is 2*r
What decimal is pi?
There is no finite-length decimal number for pi. The decimal for pi goes on until infinity! The most commonly used approximation is 3.14
What is the circumference of a circle that is 31.40 inches?
The answer clearly is 197.19. All you have to do is find the formula which is C=2 Pi r. then you do 31.4 in. times Pi{3.14} and get 98.6. Then multiply that by 2 and get 197.19,which if you wanted could round up to 197.2.
