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28.26=area

18.84=circumference

Q: What is the circumference and the area of a circle with a radius of 3?

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Diameter:6 radius:3 circumference:6(pi) area:9(pi)

The circumference of a circle with a radius of 3 m is: 18.85 m.

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

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

1) the diameter of a circle = 2*its Radius. 2) the circumference of a circle = Pi*its diameter (where pi = approx 3.14). 3) the area of a circle = Pi*its radius squared.

Related questions

The circumference of a circle if its radius is 3 is about 18.85

A circle with a radius of 3 units has a circumference of 18.85 units.

Diameter:6 radius:3 circumference:6(pi) area:9(pi)

A circle with a radius of 3 units has a circumference of 18.85 units.

The circumference of a circle with a radius of 3 m is: 18.85 m.

Circumference = 2*pi*3 inches Area = pi*32 square inches

The formula for the area of a circle is, A = πr2 If the area is tripled then the larger circle has an area of A2 = πR2 (where R is the new radius) But, πR2 = 3πr2 : R2 = 3r2 : R = r√3 The circumference of the original circle was 2πr. The circumference of the larger circle is 2πR = 2πr√3 Therefore, if the area is tripled, then the circumference increases by √3.

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

The radius is 3.

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

Circumference of a circle = 2*pi*radius or diameter*pi

Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared