To find the circumference of a circle, you can use the formula:

$C = 2\pi r$

Where:

• $C$ is the circumference
• $r$ is the radius of the circle

Given:

• $r = 4.7$ ft

Substitute the value of $r$ into the formula:

$C = 2 \times \pi \times 4.7$

Using $\pi \approx 3.1416$:

$C = 2 \times 3.1416 \times 4.7 \approx 29.5 \, \text{ft}$

So, the circumference is approximately 29.5 feet to the nearest tenth.

Would you like further explanation or more examples? Here are 5 related questions you might find interesting:

1. How do you calculate the area of a circle if you know the radius?
2. What happens to the circumference of a circle if the radius is doubled?
3. How do you use the circumference to find the radius of a circle?
4. How does changing the radius affect the area of the circle?
5. How do you calculate the diameter of a circle from the circumference?

Tip: Always round π to 3.1416 for most practical purposes, but use more decimal places if needed for greater precision.