Answer
The value of $2\pi $ must be greater than 8 but less than 16 because the value $\pi $ lies between 3 and 4.
Work Step by Step
The $\pi $ value is about $\frac{22}{7}\,\text{or 3}\text{.14}$.
This value lies between 3 and 4.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.