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Q: What is the circumference and area of a circle that has a radius of 4?

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The circumference of a circle with a radius of four is: 25.13

The circumference of a circle if the radius is 4 is about 25.13 units. (C = r x 2 x Pi)

A circle with a radius of 4 miles has a circumference of 25.13 miles.

To the nearest hundredth, the circumference of a circle with a radius of 4 is 25.13

The circumference of a circle can be found with this formula: Circumference = 2*(radius)*∏ where ∏ can be rounded to 3.14 Plugging in your radius of 4: Circumference = 2*4*∏ = 8*∏ which is around 25.13.

Area = π × radius² → radius² = area/π → radius = √(area/π) Circumference = 2 × π × radius = 2 × π × √(area/π) = √(2² × π² × area/π) = √(4 × π × area)

8pi, the circumference is 2pi multiply by radius

2, because the radius is half of the circumference

If the radius of a circle is four inches the diameter, circumference and area are:Diameter = 8 inchesCircumference = 25.13 inchesArea = 50.27 square inches

The formula for circumference of a circle is 2πr. Since the radius is 4, the circumference is 8π or approximately 25.12 inches.

The circumference is 25.1

The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.

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