Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 12? Use 3.14 for π and express your answer to the hundredths place.(1 point)

Responses

18.84
18.84

37.68
37.68

75.36
75.36

452.16

Help

1 answer

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, and
  • \( \pi \) is approximately 3.14.

Given that the radius \( r \) is 12, we can substitute this value into the formula:

\[ C = 2 \times 3.14 \times 12 \]

Now calculate it step by step:

  1. Calculate \( 2 \times 3.14 = 6.28 \)
  2. Now multiply by the radius: \[ 6.28 \times 12 = 75.36 \]

So the approximate circumference of the circle is 75.36.

The correct response is 75.36.