"Pi" is an irrational number. No series of digits can represent its value exactly,
whether written as a fraction or as a decimal. The decimal can be extended to
any number of significant figures, no matter how large, and never ends.
Chat with our AI personalities
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679
The greater the number of significant figures, the greater the precision. Each significant figure increases the precision by a factor of ten. For example pi = 3.14 is accurate to 3 significant figures, while pi = 3.14159 with 6 significant figures is a more accurate representation.
Volume = 4/3 * pi * r3 Volume = 4/3 * pi * (7.5)3 = 1767 ( units ) ----------------------------though the significant figures constraint may show 1800
Circumference / pi = Diameter, radius = diameter / 2 So> 37 / pi = 11.777 diameter = 5.8885 radius * * * * * If you wish to give your answer to 5 significant figures, you MUST use the value of pi to at least that many sig figs. Thus, radius = 37/(2*3.1416) = 5.8887 - to 5 sig figs.
You calculate the volume of three-dimensional figures, not of numbers like pi.