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

π
.(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 $C$ of a circle, the formula is:

$$C=2\pi r$$

where $r$ is the radius. Given that the radius $r$ is 2.5 feet and using $\pi \approx 3.14$:

$$C=2\times 3.14\times 2.5$$

Calculating this:

$$C=6.28\times 2.5=15.7\text{ feet}$$

So, the circumference, estimated to the tenths place, is 15.7 feet.