What is the circumference of a circle with a radius of 2.5 feet? Estimate the circumference to the tenths place using 3.14 for π

Question

.(1 point)
Responses

15.6 feet
15.6 feet

15.7 feet
15.7 feet

7.85 feet
7.85 feet

16 feet

Answer 1

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

\[ C = 2\pi r \]

where \( C \) is the circumference and \( r \) is the radius.

Given the radius \( r = 2.5 \) feet and using \( \pi \approx 3.14 \):

\[ C = 2 \times 3.14 \times 2.5 \]

Calculating this step-by-step:

1. \( 2 \times 2.5 = 5 \)
2. \( 5 \times 3.14 = 15.7 \)

Therefore, the circumference is approximately 15.7 feet.

The correct response is: 15.7 feet.