56.549
If radius of a circle is 9 centimeters the circumference would be: 56.55 cm (r x 2 x Pi = circumference).
Circumference of a circle is: 2*pi*radius or pi*diameter
The answer will depend on what 9 yards is a measure of.
You should say if the 9 feet is a radius, diameter or circumference.....if radius then 254.47 feet
A circle with a radius of 9 inches has a circumference of 56.55 inches.
If a circle has a circumference of 18pi, the radius is 9.
The circumference is (2 pi) times (the radius), and the area is (pi) times (the radius squared).The same statements are true for any circle, not only this one, so this is actuallyquite a powerful answer.
Doubling the radius doubles the circumference.
The radius is 1.43
Circumference = 2Π• radius 2Π•9 = (18×Π)"≈ 56.5"
A circle with a radius of 9 inches has a circumference of 56.55 inches and a diameter of 18 inches.
The radius is about 1.432 units.
circumference = 2*pi*9
56.549
If radius of a circle is 9 centimeters the circumference would be: 56.55 cm (r x 2 x Pi = circumference).
A circle with a radius (d/2) of 9 meters has a circumference of 56.5 meters.