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5-Minute Check Lesson 6-1A

5-Minute Check Lesson 6-1A. 5-Minute Check Lesson 6-1B. Math ador Gameplan. Section 6.1: Angles and Radian Measure CA Standards : T 4.0 Daily Objective (12/5/12):

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5-Minute Check Lesson 6-1A

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  1. 5-Minute Check Lesson 6-1A

  2. 5-Minute Check Lesson 6-1B

  3. MathadorGameplan Section 6.1:Angles and Radian Measure CA Standards: T 4.0 Daily Objective (12/5/12): Students will be able to (1) change between radian measure and degree measure, (2) find the length of an arc given the measure of the central angle, and (3) find the area of a sector. Homework:page 348 (#16 to 48 all)

  4. Radians: the measure of the central angle that intercepts an arc equal in length to the length of the radius Full circle = 2π radians Half circle = π radians Right angle = π/2radians

  5. Conversion Formulas

  6. WE DO CONVERTING DEGREES TO RADIANS

  7. You Do Together CONVERTING DEGREES TO RADIANS

  8. WE DO CONVERTING RADIANS TO DEGREES 243.51° = 243°30’ ≈

  9. You Do Together CONVERTING RADIANS TO DEGREES

  10. Fill the Unit Circle with radian measures

  11. continue to fill the circle with degree measures

  12. WE DO FINDING FUNCTION VALUES OF ANGLES IN RADIAN MEASURE

  13. You Do Together FINDING FUNCTION VALUES OF ANGLES IN RADIAN MEASURE

  14. You Do Together – Final answers on whiteboards

  15. Arc Length

  16. WE DO

  17. You Do Together Given a central angle of 225, find the length of its intercepted arc in a circle of radius 4 cm. Round to the nearest tenth.

  18. You Do Together – Final answers on whiteboards Two cities lie along the same longitude line. The latitude of the first city is 61 N and the latitude of the second city is 35 N. The radius of Earth is about 3960 miles.Find the approximate distance between the 2 cities.

  19. Area of A sector

  20. WE DO

  21. You Do Together

  22. Group Practice:

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