Circumference of a circle = (pi) x (diameter)
Circumference divided by Pi
Diameter of a circle = circumference/pi
The circumference of a circle is given by the formula C = 2pr or pd Given d = 10cm and p = 3.142, we have: C = 3.142 x 10cm = 31.42cm
Not sure of your question since you already have the values for both equations, so I assume you want to calculate what the diameter is. If this is so, you can use the formula for finding circumference to calculate the diameter: c = pi*d (next substitute with the given values) 87.92 = 3.014*d (next divide both sides by 3.14 to find the diameter) 28 = d 28 this is the diameter of a circle that has a circumference of 87.92
Given a diameter d, the circumference of a circle is Pi*d. Thus the circumference is Pi times larger than the diameter.
Circumference divided by Pi
If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi
Circumference = (diameter) multiplied by (pi)
The formula for finding the radius of a circle is circumference divided by double of pi. If area is given instead of circumference, the radius may be found by dividing the area by pi, then finding the square root of the resultant quotient. It is also equal to half of the diameter, or the diameter divided by 2.
C=Pi x diameter
When you are given the circumference of a circle asked to find the diameter, divide the circumference by pi. The formula for circumference is pi x diameter, so the formula for diameter is circumference divided by pi. So 7 divided by pi equals about 2.22.
diameter = circumference/pi (pi = 3.14159265 or 3.14 for rough approximation).
To find the circumference of a circle the formula is: 2*pi*radius or diameter*pi
(pi)D
The circumference, C, of a circle is given by the formula
3.14 to the 2 power
The circumference of a circle is given by the formula C = 2πr where r is the radius. But, as the diameter is 2 x radius then the formula can be written C = πd where d is the diameter. In this example the circumference = 2π3 = 6π = 18.85 units.