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
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 formula for circumference of a circle is 2πr. Since the radius is 4, the circumference is 8π or approximately 25.12 inches.
2, because the radius is half of the circumference
8pi, the circumference is 2pi multiply by radius
The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.
The circumference is 25.1