VALUE OF PIE
Pi is defined as the ratio of the
circumference of a circle to the diameter that is approximately equal to
3.14159. In a circle, if you divide the circumference (is the total distance
around the circle) by the diameter, you will get exactly the same number.
Whether the circle is big or small, the value of pi remains the same. The
symbol of Pi is denoted by π and pronounced as “pie”. It is
the 16th letter of the Greek alphabet and used to represent a mathematical
constant.
Pi is also known as an
irrational number which means that the digits after decimal point never end
being a non-terminating value. Therefore, 22/7 is used for everyday
calculations. π is not equal to the ratio of any two number
which makes it an irrational
number.
How to calculate value
of Pi?
π=circumferenceDiameter
π = 3.14159
Let us understand the
concept of Pi with the following a few examples.
Let’s have a look at
the first 100 decimal places of Pi
3.14159 26535 89793
23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899
86280 34825 34211 7067
Examples
Question – A boy walks around a circle which has a
diameter of 100 m, how far the boy has walked?
Solution:
Distance walked =
Circumference
Circumference = π ×
100m = 314.159 m
Therefore, circumference
= 3.14m
length, weight, sizes and percentages as
well.
No comments:
Post a Comment