radius
/ˈreɪdi.əs/radius
NOUNDefinition of radius
A radius is a straight line between the centre of a circle and its circumference.
Example: To find the area of a circle, you have to know the length of the radius.
radius
EXAMPLESExamples of radius
1
To find the area of a circle, you have to know the length of the radius.
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