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the formula for the circumference is

c=2(pi)r

Since you already have the circumference, just plug it into the formula, and solve:

3=2(pi)r divide by 2pi

0.47746483 = rQ: What is the radius if the circumference is 3 inches?

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The circumference of a circle when the radius is 3 inches is: 18.8 inches (r x 2 x Pi = circumference)

A circle with a radius of 3 inches has a circumference of 18.8 inches

Diameter = 6 inches Radius = 3 inches Circumference = 2 x pi x radius = 18.84955592 inches

A circle with radius of 3 inches doesn't have a diameter of 10 inches. If the radius is 3, then the diameter is 6, and the circumference is (6 pi) = 18.85 . (rounded) If the diameter is 10, then the radius is 5, and the circumference is (10 pi) = 31.42 . (rounded) The diameter is always double the radius, and the radius is always half of the diameter.

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

Related questions

The circumference of a circle when the radius is 3 inches is: 18.8 inches (r x 2 x Pi = circumference)

A circle with a radius of 3 inches has a circumference of 18.8 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 = 18.8 inches

Diameter = 6 inches Radius = 3 inches Circumference = 2 x pi x radius = 18.84955592 inches

6 inches because the diameter is twice the radius 3+3 = 6 circumference = pi*6 = 18.849 inches

circumference = 2*pi*11 = 69.115 inches to 3 dp

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 radius of 3 inches doesn't have a diameter of 10 inches. If the radius is 3, then the diameter is 6, and the circumference is (6 pi) = 18.85 . (rounded) If the diameter is 10, then the radius is 5, and the circumference is (10 pi) = 31.42 . (rounded) The diameter is always double the radius, and the radius is always half of the diameter.

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.