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
6 feet
6 feet
25 feet
25 feet
13 feet
13 feet
50 feet
The circumference of a circle can be found 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, C = π(4) = 4π = 12.57 (rounded to two decimal places).
Therefore, the best estimation for the circumference is 13 feet.
To find the circumference of a circle, we can use the formula C = πd, where C is the circumference and d is the diameter of the circle.
Given that the diameter is 4 feet, we can substitute this value into the formula:
C = π(4)
The best estimation for the circumference depends on the value of π being used. π is an irrational number, but it is commonly approximated to 3.14.
Using this approximation, we can calculate:
C ≈ 3.14 * 4
C ≈ 12.56
Since none of the given options match this estimation, we can conclude that none of the provided options are the best estimation for the circumference of the given circle.
To find the circumference of a circle, you can use the formula: C = πd, where C is the circumference and d is the diameter of the circle.
Given that the diameter of the circle is 4 feet, we can substitute this value into the formula:
C = π * 4 feet
Now, let's find the best estimation for the circumference among the options:
Option 1: 6 feet
Using the formula, the circumference should be approximately 4π feet, which is roughly 12.57 feet. This estimation is higher than 6 feet, so it is not the best choice.
Option 2: 25 feet
Again, the exact circumference should be approximately 4π feet, which is about 12.57 feet. This estimation is much lower than 25 feet, so it is not the best choice either.
Option 3: 13 feet
Following the formula, the circumference should be approximately 4π feet, around 12.57 feet. This estimation is the closest to the actual value so far, making it a better choice.
Option 4: 50 feet
Using the formula, the expected circumference would be approximately 4π feet, which is roughly 12.57 feet. This estimation is significantly lower than 50 feet and is not the best choice.
Among the given options, the best estimation for the circumference of a circle with a diameter of 4 feet is 13 feet.