Answer:
4.5 cm.
Step-by-step explanation:
We have been given that circle O has a circumference of approximately 28.3 cm.
We will use circumference formula to solve for the radius of our given circle.
[tex]\text{Circumference of a circle}=2\pi r[/tex]
Upon substituting the measure of circumference in above formula we will get,
[tex]28.3=2\pi r[/tex]
[tex]r=\frac{28.3}{2\pi}[/tex]
[tex]r=4.504084889500638\approx 4.5[/tex]
Therefore, the radius of circle O is 4.5 cm.
