2 Answers

Haoming · Answer 1 · 2019-07-26T06:48:42+0000

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.

$\text{Circumference of a circle}=2\pi r$

Upon substituting the measure of circumference in above formula we will get,

$28.3=2\pi r$

$r=(28.3)/(2\pi)$

$r=4.504084889500638\approx 4.5$

Therefore, the radius of circle O is 4.5 cm.

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