Circumference is the distance around an object. Most usually applied to a circle,
but any closed figure, building, octagon, etc, all have a circumference. Even a
non-regular object such as a tree or a meteor crater has a circumference. The
units used are entirely up to the measurer. Whether Imperial, SI, or whatever
you like, a circumference is always described in a unit of length.
No. "pi" is the 'ratio' of circumference to diameter of a circle. It doesn't care what the unit is,just as long as both are measured in the same unit.
The unit for a circumference is the same as the unit for length (or radius or diameter).
Since the radius of the unit circle is 1, the circumference is 2 x pi.
Diameter.
The circumference of the Earth measured between the North and South poles is approximately 40,007.86 kilometers.
The circumference is the distance around a circle and it is measured by:- Circumference of a circle = 2*pi*radius or pi*diameter
It is used in finding the circumference and area of a circle. Circumference = 2*pi*radius or pi*diameter measured in linear units Area = pi*radius2 measured in square units
The circumference is 27.646 units.
== == Given that the circumference of the earth is 40,075.02 km (measured at the equator) the circumference in inches is roughly 1,577,756,664 inches.
Eratosthenes
1
Circumference is the measurement around the trunk of the tree. It is usually measured at breast height because trees flare out at the bottom at different rates based on soil conditions. The best way to measure this is with a ribbon or piece of rope. Diameter can be measured by dividing this number by pi or 3.1415