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The circumference of a circle is the radius times 2 times the irrational number "pi", which is approximately 3.14159. "Irrational" means that the number cannot be calculated as a ratio or fraction, and that the sequence of decimal places never repeats.
So, the circumference of a circle of radius 9 is 56.55.
If you had said that the radius of the circle was 9.0, we could reasonably calculate this to another couple of decimal places, but since the original number wasn't specified to 2 digits of precision, it's not reasonable to try to be more precise in the calculation.
What else can I help you with?
A circle has a circumference of 18 pi so what is the radius of this circle?
If a circle has a circumference of 18pi, the radius is 9.
How is the circumference of a circle with radius 9 cm related to the circumference of a circle with diameter of 9cm?
Doubling the radius doubles the circumference.
What is the circumference of a circle whose diameter is 9 cm?
A circle with a radius of 4.5 cm has a circumference of 28.27 cm
If there is a radius of 9 cm what is the circumference of the circle?
18 pi
If a circle circumference is 30 what is radius?
If a circle circumference is 30 the radius is: 4.77
What is a circumference of a circle with the radius of 9 inches?
A circle with a radius of 9 inches has a circumference of 56.55 inches.
A circle has a circumference of 18 pi so what is the radius of this circle?
If a circle has a circumference of 18pi, the radius is 9.
How is the circumference of a circle with radius 9 cm related to the circumference of a circle with diameter of 9cm?
Doubling the radius doubles the circumference.
What is the radius of a circle with a circumference with a 9?
The radius is 1.43
What is the circumference of a circle if the radius is 9 in?
Circumference = 2Π• radius 2Π•9 = (18×Π)"≈ 56.5"
What is the circumference and diameterof a circle with a radius of 9 inches?
A circle with a radius of 9 inches has a circumference of 56.55 inches and a diameter of 18 inches.
What is the radius of a circle with a circumference of 9?
The radius is about 1.432 units.
What is the circumference of a circle that the radius is 9 centimeters?
circumference = 2*pi*9
What is circumference of a circle with radius 9?
56.549
If radius of a circle is 9 centimeters what would be the circumference?
If radius of a circle is 9 centimeters the circumference would be: 56.55 cm (r x 2 x Pi = circumference).
What is the circumference of a circle with a radius of 9 yards?
The circumference is about 56.55 yards.
What is the circumference of a circle that is 18m in diameter?
A circle with a radius (d/2) of 9 meters has a circumference of 56.5 meters.
