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Lesson 8-3

Tangents. Lesson 8-3. A. C. 4. B. B. 3. A. D. C. THEOREM #1:. If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. Example:. Find the value of . C. B. A. A. 1.8. cm. F. B. 7.0. cm. C. D. 2.4. cm. E. THEOREM #2:.

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Lesson 8-3

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  1. Tangents Lesson 8-3 Lesson 8-3: Tangents

  2. A C 4 B B 3 A D C THEOREM #1: If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. Example: Find the value of Lesson 8-3: Tangents

  3. C B A A 1.8 cm F B 7.0 cm C D 2.4 cm E THEOREM #2: If two segments from the same exterior point are tangent to a circle, then they are congruent. Example: Find the value of If AB = 1.8 cm, then AF = 1.8 cm AE = AF + FE AE = 1.8 + 7.0 = 8.8 cm If FE = 7.0 cm, then DE = 7.0 cm CE = CD + DE CE = 2.4 + 7.0 = 9.4 cm Lesson 8-3: Tangents

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