05. The Amazing of "Pi"

 

Do you know the value of "pi"???

 

"Pi" cannot be written exactly as a decimal because it is a transcendental number; it's irrational. We know precisely how much it is mathematically, just like we know exactly how much the square root of 2 is. We can't write either pi or the square root of 2 as a fraction of integers (or in a repeating or finite decimal notation). "Pi" has a decimal representation which consists of an infinite number of non-repeating digits.

The value of "pi" can be determined by finding the ratio of the circumference of a circle to its diameter..

The value of pi to 100 significant figures is...

3.141592653589793238462643383279502884197169399375

10582097494459230781640628620899862803482534211...

Do this experiment by your own....

Divide the circumference by its diameter...
Complete the table below.... 

Round Objects         Circumference (cm)       Diameter (cm)     Circumference / Diameter 

----------------------       -----------------------------     ---------------------     -------------------------------------

1. 50 sen coin

2. Plate

3. Car tyre

4 Roundabout  

It doesn't matter how large of small the circle is, the ratio of the circumference to the diameter will always be around 3.142....