circ = 2 pi r = pi d
The circumference of a circle with a radius of 3.2 cm is approximately 20.1 cm. This can be calculated using the formula: circumference = 2 * π * radius.
The circumference C of any circle is equal to pi*diameter. The diameter is equal to the radius times 2. So, for a circle with radius 48, it has a diameter of 96, and a circumference of 96*3.14=301.44. This of course is using 3.14 as an estimate for pi.
Using the Circumference And Area.
Pi is the number of times the diameter of a circle will fit into the circumference. Pi is not a circle, and does not have a circumference or area. To calculate a circumference USING pi, the circumference is diameter * pi. To find the area using pi, area = pi * radius * radius
Circumference of a circle = 2*pi*radius or diameter*pi
circumference of a circle = pi*diameter or 2*pi*radius
If you know the radiusGiven the radius of a circle, the diameter can be calculated using the formula:The Diameter is Twice the Radius, or D = 2RWhere R is the Radius.If you know the circumferenceIf you know the circumference of a circle, the diameter is found using the formula D= C/πwhere:C is the circumference of the circleπ is Pi, approximately 3.142
Area of a circle = pi*radius squared Circumference of a circle = 2*pi*radius or diameter*pi
If you have the circumference- You have to divide the circumference by 2*Pi If you know the diameter the radius is simply half the diameter. If you know the area of a circle, the radius can be found using the formula : R = √A/π where: A is the area of the circle and π is Pi, approximately 3.142.
Circumference of a circle = 2*pi*radius or pi*diameter
The circumference of a circle is the length around it. The circumference of a circle can be calculated from its diameter using the formula: Circumference of a circle = 2*pi*radius orCircumference of a circle = pi*diameterwhere r is the radius and d is the diameter of the circle, and � (the Greek letter pi) is defined as the ratio of the circumference of the circle to its diameter.(the numerical value of pi is 3.141 592 654 589 793...).d * pior 2 * r * piWhere d is diameter and r is radius and pi = 3.14159
well if the radius is given then the diameter is : d=2r. as for in a circle the diameter is : d=2(pi)r pi=3.14