Question

an experiment to determine the value of pi

Answer 1

What? What do you mean? Are you asking if it would be considered an experiment to find the value of pi?

Answer 2

Google.

Answer 3

@dust7799 We can measure this using a string, Make a circle with know radius on a piece of paper or a big drawing sheet.

Answer 4

Now align a string or thread on the outline of the circle, you'll need to measure the length of string used to cover the outline of the circle.

Answer 5

The length of the string used is the perimeter of the circle or the circumference.
We already know the radius, use this formula:
\[\pi= \frac{\text{length of the string}}{2\times r}\]

Answer 6

Obviously this method will only given an approximate figure, and it's prone to a lot of measurement errors.
But a simple experiment to measure the value of pi