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Chapter 10.2

Chapter 10.2. Measuring Angles and Arcs. Central Angle. A central angle of a circle is an angle with a vertex in the center of the circle. The sides of a central angle are radii of the circle. Concept. Find Measures of Central Angles. Find the value of x. Find the value of x. A. 9

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Chapter 10.2

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  1. Chapter 10.2 Measuring Angles and Arcs

  2. Central Angle • A central angle of a circle is an angle with a vertex in the center of the circle. • The sides of a central angle are radii of the circle.

  3. Concept

  4. Find Measures of Central Angles Find the value of x.

  5. Find the value of x. A. 9 B. 10 C. 11 D. 65

  6. Answer: Classify Arcs and Find Arc Measures

  7. Classify Arcs and Find Arc Measures

  8. Answer: Classify Arcs and Find Arc Measures

  9. A. B. C. D.

  10. A. B. C. D.

  11. A. B. C. D.

  12. Concept

  13. Answer: Find Arc Measures in Circle Graphs

  14. Find Arc Measures in Circle Graphs

  15. A. 124.3 B. 140.4 C. 155.6 D. 165.9

  16. A. 273.6 B. 240.5 C. 215.7 D. 201.4

  17. Concept

  18. Use Arc Addition to Find Measures of Arcs

  19. Use Arc Addition to Find Measures of Arcs

  20. A. 180 B. 90 C. 52 D. 38

  21. A. 52 B. 90 C. 142 D. 180

  22. Concept

  23. Answer: Find Arc Length Arc Length Equation

  24. Answer: Find Arc Length

  25. Answer: Find Arc Length

  26. A. 3.56 cm B. 3.77 cm C. 3.98 cm D. 4.21 cm

  27. A. 36.56 cm B. 37.79 cm C. 38.61 cm D. 40.21 cm

  28. A. 32.99 cm B. 33.59 cm C. 33.89 cm D. 34.61 cm

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