Q: What is the circumference if the radius is 21 inches?

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A circle with a radius of 21 inches has a circumference of 131.95 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.

The radius of a circle with a circumference of 272.2 inches is 43.3 inches.

A circle with a radius of 16 inches has a circumference of 100.53 inches.

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A circle with a radius of 21 inches has a circumference of 131.95 inches.

the radius is 10.5 inches. * * * * * Wrong! Circumference = 2*pi*Radius Or, Radius = Circumference/(2*pi) So circumference = 21 inches implies radius = 3.34 inches (to 3 sf)

C = 131.95 inches.

The circumference is about 131.9 inches. (C = r x 2 x Pi)

If the radius of a circle is 8.5 inches the circumference is: 53.4 inches

If the circumference of a circle is 24 inches the radius is: 3.82 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.

The radius of a circle with a circumference 36 inches is: 5.73 inches.