5 ft.

Question

Shape: Circle
Circumference Formula: C = πd
What is the circumference of a circle with a diameter of 5 feet?
Use 3.14 for pi (π).
C = [?] ft.
Do not round your answer.

Answer 1

To find the circumference of a circle using the formula \( C = \pi d \), where \( d \) is the diameter, you can plug in the values:

Given:

• Diameter \( d = 5 \) ft
• \( \pi \approx 3.14 \)

Now substituting these values into the formula:

\[ C = \pi d = 3.14 \times 5 \]

Calculating this:

\[ C = 15.7 \text{ ft} \]

Thus, the circumference of the circle is:

\[ C = 15.7 \text{ ft} \]