2 inch radius = 12 9/16" circumference & an area of 12.56637 sq. inches.
r2*pie=circumference 9(9)*pie 81*pie 254
C = 2*pi*r Plug in.
Circumference of 9 inches: 2.864788975654119in. (for pi I used 3.14159265358979) Diameter of 9 inches: 4.5in.
If a circle has a circumference of 18pi, the radius is 9.
A circle with a radius of 9 inches has a circumference of 56.55 inches.
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.
2 inch radius = 12 9/16" circumference & an area of 12.56637 sq. inches.
r2*pie=circumference 9(9)*pie 81*pie 254
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.
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.
If a circle has a circumference of 18pi, the radius is 9.
Doubling the radius doubles the circumference.
The radius is 1.43