Circumference equals 2 X pi X radius, so work backwards.
18pi=2 X pi X radius
divide pi.
18= 2 X radius
divide by 2.
radius= 9.
Assuming we are talking about a circle... C = 2xpixr 23 = 2 x pi x r r = 23/(2xpi)
Radius of circle: 16/2 = 8 inches
The radius of a circle with a circumference 36 inches is: 5.73 inches.
A circle with a radius of 2.5 inches has a circumference of 15.71 inches.
A circle with a radius of 21 inches has a circumference of 131.95 inches.
you times it by 3.14 but if you get a radius you timesit by 2, then by 3.14
Assuming we are talking about a circle... C = 2xpixr 23 = 2 x pi x r r = 23/(2xpi)
The radius (not raduis) is 8 inches.
The radius is 8 inches.
A circle with a radius of 72 inches has a circumference of 452.39 inches.
The circumference of a circle with a radius of 4.246 inches is about 26.68 inches.
The circumference of a circle with a radius of 10 inches is about 62.83 inches.
A circle with a radius of 9 inches has a circumference of 56.55 inches.
A circle with a radius of six inches has a circumference of 37.7 inches.
A circle with a radius of 21 inches has a circumference of 131.95 inches.
The radius of a circle with a circumference of 272.2 inches is 43.3 inches.
The radius of a circle with a circumference 36 inches is: 5.73 inches.