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
.(1 point)
Responses
16 feet
16 feet
7.85 feet
7.85 feet
15.7 feet
15.7 feet
15.6 feet
The circumference of a circle with a radius of 2.5 feet is approximately 15.7 feet when estimated to the tenths place using 3.14 for π.
To find the circumference of a circle, you can use the formula C=2πr, where C is the circumference, π is approximately 3.14, and r is the radius.
Given that the radius is 2.5 feet, we can substitute this value into the formula:
C = 2 * 3.14 * 2.5
C = 6.28 * 2.5
C = 15.7 feet
Therefore, the estimated circumference of the circle with a radius of 2.5 feet is 15.7 feet.
To find the circumference of a circle, you can use the formula C = 2πr, where C represents the circumference, π (pi) represents the constant value approximately equal to 3.14, and r represents the radius of the circle.
In this case, the radius is given as 2.5 feet. So, you can substitute the values into the formula:
C = 2 * 3.14 * 2.5
C ≈ 15.7 feet
Therefore, the estimated circumference of the circle with a radius of 2.5 feet is 15.7 feet, rounded to the tenths place.
So, the correct response would be:
15.7 feet