radii Definition
the plural form of radius, which refers to the distance from the center of a circle or sphere to its edge.
Using radii: Examples
Take a moment to familiarize yourself with how "radii" can be used in various situations through the following examples!
Example
The radii of the two circles are different.
Example
The radii of the sphere are equal.
Example
The radius of the earth is approximately 6,371 kilometers.
Origins of radii
from Latin 'radius', meaning 'spoke' or 'ray'
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Summary: radii in Brief
The term 'radii' [ˈreɪdi.aɪ] is the plural form of 'radius,' which refers to the distance from the center of a circle or sphere to its edge. It is used in mathematical and scientific contexts, such as 'The radii of the two circles are different.'
