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Identifying Special Segments and Lines in Circles

Learn how to identify whether a line, ray, or segment in a circle is best described as a radius, chord, diameter, secant, or tangent of C. Examples and solutions provided.

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Identifying Special Segments and Lines in Circles

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  1. Tell whether the line, ray, or segment is best described as a radius, chord, diameter, secant, or tangent of C. AC AC a. a. is a radius because Cis the center and Ais a point on the circle. EXAMPLE 1 Identify special segments and lines SOLUTION

  2. is a diameter because it is a chord that contains the center C. Tell whether the line, ray, or segment is best described as a radius, chord, diameter, secant, or tangent of C. b. AB AB b. EXAMPLE 1 Identify special segments and lines SOLUTION

  3. Tell whether the line, ray, or segment is best described as a radius, chord, diameter, secant, or tangent of C. is a tangent ray because it is contained in a line that intersects the circle at only one point. c. c. DE DE EXAMPLE 1 Identify special segments and lines SOLUTION

  4. Tell whether the line, ray, or segment is best described as a radius, chord, diameter, secant, or tangent of C. d. AE d. is a secant because it is a line that intersects the circle in two points. AE EXAMPLE 1 Identify special segments and lines SOLUTION

  5. 1. In Example 1, what word best describes AG ? CB ? AG CB Is a chord because it is a segment whose endpoints are on the circle. is a radius because Cis the center and Bis a point on the circle. for Example 1 GUIDED PRACTICE SOLUTION

  6. A tangent is DE A tangent segment is DB for Example 1 GUIDED PRACTICE 2. In Example 1, name a tangent and a tangent segment. SOLUTION

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