To find the radius (r) of a circle given the circumference (C), we can use the formula:
\[ C = 2\pi r \]
Given that the circumference (C) is 18.84 feet, we want to solve for r.
First, we can rearrange the formula to solve for r:
\[ r = \frac{C}{2\pi} \]
Now we can substitute the given values into the equation. We will use \( \pi \approx 3.14 \).
- Substitute the values into the formula:
\[ r = \frac{18.84}{2 \times 3.14} \]
- Calculate the denominator:
\[ 2 \times 3.14 = 6.28 \]
- Now divide the circumference by this value:
\[ r = \frac{18.84}{6.28} \]
- Perform the division:
\[ r \approx 3 \]
So the radius (r) of the circle is approximately 3 feet.