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Q: What is a circumference of a circle with the radius of 9 inches?

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Circumference: 2*pi*3 = 6*pi inches Area: pi*3 squared = 9*pi square inches

18 inches

the circumfrence of a circle is pi times it's radius squared.

The circumference of a 9 circle is: 28.3

6 inches pi*32 = 9*pi square inches (smaller circle) pi*62 = 36*pi square inches (larger circle)

Related questions

A circle with a radius of 9 inches has a circumference of 56.55 inches and a diameter of 18 inches.

C = ~56.55 inches.

r2*pie=circumference 9(9)*pie 81*pie 254

2 inch radius = 12 9/16" circumference & an area of 12.56637 sq. inches.

C = 2*pi*r Plug in.

Circumference is 2 times pie (which is often rounded to 3.14) times the radius. The result is 56.52 inches.

If a circle has a circumference of 18pi, the radius is 9.

It is the name given to the straight line from the centre of a circle to its circumference when that distance is 36 inches.

Circumference of 9 inches: 2.864788975654119in. (for pi I used 3.14159265358979) Diameter of 9 inches: 4.5in.

The radius is 1.43

Doubling the radius doubles the circumference.

The radius is about 1.432 units.

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