How can we find the radius of a circle?

The radius of a circle is half the distance from the center to any point on the circle.

To find the radius of a circle, we can use the following formula:

$$r = \frac{d}{2}$$

where:

• $$r$$ is the radius of the circle
• $$d$$ is the diameter of the circle

The diameter of a circle is the distance from the center to the outside edge. To find the diameter, we can use the following formula:

$$d = 2r$$

Once we have the diameter, we can substitute it into the formula above to find the radius.