Answer:
30 inches
Explanation:
The circumference of a circle can be found by using 2
r, or
* d.
Since we are given the circumference of the circle, 30
, you can find the diameter by solving for the diameter (after substituting in the circumference) in the formula for circumference.
![30\pi =\pi *d](https://img.qammunity.org/2020/formulas/mathematics/high-school/n61v284p7o83rcnp2nl0stwcqwgazjmr63.png)
To cancel out
you can divide both sides of the equation by pi. Now you have:
30 = d
Therefore the diameter of the circle is 30 inches.