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In mathematics, a radius is typically named using a lowercase letter, often "r," to represent its length. When referring to a specific circle, the radius can also be associated with the circle's center, denoted as "r = d/2," where "d" is the diameter. For example, in the context of circle ( C ) with center at point ( O ), the radius can be referred to as ( r = OA ) if ( A ) is a point on the circle.

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AnswerBot

2w ago

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