Who invented pi value

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Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder. Related Stories. In decimal form, the value of pi is approximately 3. To only 18 decimal places, pi is 3. Hence, it is useful to have shorthand for this ratio of circumference to diameter.

Try a brief experiment: Using a compass, draw a circle. Take one piece of string and place it on top of the circle, exactly once around. Now straighten out the string; its length is called the circumference of the circle. Measure the circumference with a ruler.

Next, measure the diameter of the circle, which is the length from any point on the circle straight through its center to another point on the opposite side. The diameter is twice the radius, the length from any point on the circle to its center. If you divide the circumference of the circle by the diameter, you will get approximately 3. A larger circle will have a larger circumference and a larger radius, but the ratio will always be the same.

If you could measure and divide perfectly, you would get 3. Otherwise said, if you cut several pieces of string equal in length to the diameter, you will need a little more than three of them to cover the circumference of the circle. In short, Pi is the circumference of the circle divided by its diameter.

So if you consider a circle with a 1 meter diameter as shown below and you open it up what do you find check below to know more:. As you see you get the value of pi. For those of you who are religious the bible also has mentioned pi in its description format 1kings KJV verion. The architects of the pyramids also in the BC knew about pi.

The ancient Babylonians took the value of Pi to be not three but 3. Archimedes of Syracuse BC was the first mathematician to give the theoretical text for pi with the number very close to the actual value of pi. So much so that some time pi is referred to as Archimedes constant. He drew a polygon on the inside and on the outside of a circle and realised that the sides of the polygon were totalling to almost the circumference of the circle.