What is the circumference of a circle with a diameter = 4 feet? Which of the following is the best estimation for the circumference?(1 point)

Responses

50 feet
50 feet

25 feet
25 feet

6 feet
6 feet

13 feet

3 answers

The circumference of a circle can be calculated using the formula C = πd, where C is the circumference and d is the diameter. In this case, the diameter is given as 4 feet.

Using the formula, we can calculate the circumference C = π(4) = 4π feet.

Among the given options, the best estimation for the circumference would be 13 feet, as 4π is approximately equal to 12.57, which rounds to 13.
What is the circumference of a circle with a diameter of 3.25 meters? Estimate the circumference to the hundredths place using 3.14 for π

.(1 point)
Responses

10.2 meters
10.2 meters

10.22 meters
10.22 meters

33.18 meters
33.18 meters

10.21 meters
The circumference of a circle can be calculated using the formula C = πd, where C is the circumference and d is the diameter. In this case, the diameter is given as 3.25 meters.

Using the formula, we can calculate the circumference C = 3.14 * 3.25 = 10.205 meters.

Among the given options, the best estimation for the circumference would be 10.21 meters, as it is the closest value to the calculated circumference of 10.205 meters when rounded to the hundredths place.