
What's the circumference of a circle with a diameter of 9 inches?

We are asked to find the circumference of a circle, which we can find using the following formula:-

- Where:-
- π=pi [3.14…]
- d=diameter (9 inches)
How to solve for circumference:-
- Replace d with 9 and multiply:-

On simplification,

Notice that we are not asked to round our answer, so we leave it like that - C=28.26.
Good luck with your studies.
