By far the most popular and well-stocked category of used instruments is our selection of guitars, where we've got a huge variety of all the big names. Used Gibson Les Paul, pre-owned Fender Telecaster and secondhand Stratocaster guitars are commonly found within these pages, waiting for their new homes with players and collectors.
22/7 is a pretty decent choice for teaching 11-year-olds about fractions that are close to pi. 355/113 would be better, if you think they can remember numbers that big. And approxRational is fun. Exercise for the interested reader: implement an inverse to approxRational.
Pi as a fraction is 22/7,and as a decimal it is 3.14...however in maths it is advisable to use pi as 22/7 for correct solution.his is your diametrer. take the circumference of the circle and divide by the diameter this equals pi. you can do this for any circle no matter how big or small and it will come out to a constant number. this number is named pi. Source(s):