Just as there is no formula to find the length of a side of a square when you know the inch, there is no formula to relate a centimetre to a diameter.
Depends on the information that you DO have. Half the diameter is the easiest formula, but that only works if you know the diameter.
pi * d
circumference of a circle = pi * diameter.
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
It depends on the information that you do have. If you know the diameter, the circumference or the area the equations are relatively straightforward.
Depends on the information that you DO have. Half the diameter is the easiest formula, but that only works if you know the diameter.
pi * d
circumference of a circle = pi * diameter.
if u know the t5he radius of the cylinder u can easily find the diameter the formula is d=2r where d =diameter and r=radius
1 centimeter equals 10 mm and 1 millimeter equals 0.1 centimeter. If you know the diameter in mm, divide by 10 to find cm.
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
Where C=circumference, r= radius and d=diameter To find circumference: C=2 x pi x r or you can use the formula C=pi x d To find diameter just multiply the radius by 2 if you know what the radius is. If you do not know the radius, but you know the circumference and need diameter use the following formula: C/pi=d Happy Computing!!!
C = pi d By algebraic rearrangement d = C / pi
It depends on the information that you do have. If you know the diameter, the circumference or the area the equations are relatively straightforward.
The diameter of a circle can be found without the circumference using the formula d = 2r. This formula requires that you know the radius of the circle which is half of the diameter. To calculate the diameter you need to multiply the radius by 2. For example if the radius of the circle is 4 then the diameter would be 8 (4 x 2 = 8).You can also find the diameter of a circle if you know the circumference. To do this use the formula c = d. By rearranging the equation you can calculate the diameter as d = c/. For example if the circumference of the circle is 12.5 the diameter would be 4 (12.5/ = 4).
Pi X D = Circumference. To find Diamater if you know Circumference, divide Circumference by Pi (3.14).
Circumference divided by pi equals diameter. Pi X Diameter=Circumference.