To find the circumference of a circle then multiply pi (3.14159265...) by the diameter of the circle.
To find the area then multiply pi by the radius squared.
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 units has a circumference of 25.13 units.
radius of a circle = 4 inchesCircumference of a circle = 2π radiusradius = circumference/ 2π= 8π/2π= 8/2= 4
The circumference of a circle with a 4-foot radius is about 25.13 feet. (C = r x 2 x Pi)
One definition of pi is the ratio of the circumference, C, of a circle to its diameter.,d. pi=C/d The area of a circle is (pi)r2 or (pi)d2/4 where r is the radius.
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)
Area = π × radius² → radius² = area/π → radius = √(area/π) Circumference = 2 × π × radius = 2 × π × √(area/π) = √(2² × π² × area/π) = √(4 × π × area)
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.
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
To the nearest hundredth, the circumference of a circle with a radius of 4 is 25.13
A circle with a radius of 4 miles has a circumference of 25.13 miles.
The formula for circumference of a circle is 2πr. Since the radius is 4, the circumference is 8π or approximately 25.12 inches.
The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.
2, because the radius is half of the circumference
8pi, the circumference is 2pi multiply by radius
The circumference is 25.1