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Identifying Parts of a Circle
publish date: 2026/05/16 23:57:55.359107 UTC
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A circle with center point O is shown below. Identify the geometric term that correctly describes the blue line segment connecting the center point O to point A on the outer boundary.
Correct Answer
Radius
Explanation
By definition, a radius is any straight line segment that extends from the central point of a circle to its outer perimeter boundary.
Reference
Mathematics for college students