What is the approximate circumference of a circle that has a diameter of 20? Use 3.14 for π and express your answer to the tenths place.(1 point)

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5 answers

The circumference of a circle can be calculated using the formula C = πd, where d is the diameter of the circle.

Given that the diameter is 20, we can plug it into the formula:
C = 3.14 * 20
C ≈ 62.8

Therefore, the approximate circumference of a circle with a diameter of 20 is 62.8.
A circle has an approximate circumference of 574 meters. What is the circle’s diameter, rounded to the nearest tenth? Use 3.14 for π .
_meters
The formula for the circumference of a circle is C = πd, where C is the circumference and d is the diameter.

Given that the circumference is 574 meters, we can rearrange the formula to solve for the diameter:
d = C / π
d = 574 / 3.14
d ≈ 182.2

Therefore, the circle's diameter, rounded to the nearest tenth, is approximately 182.2 meters.
A circle has an approximate circumference of 574 meters. What is the circle’s diameter, rounded to the nearest tenth? Use 3.14 for π.
_meters
To find the diameter of the circle given the circumference of 574 meters, we can use the formula:

Circumference = π * diameter

Given that the circumference is 574 meters and π ≈ 3.14, we can solve for the diameter:

574 = 3.14 * diameter
diameter = 574 / 3.14
diameter ≈ 182.166

Rounded to the nearest tenth, the circle's diameter is approximately 182.2 meters.