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76-77 Degrees and Radians

76-77 Degrees and Radians. Skill #’s 1-4. Objective. To use degree and radian measure. Angles. A central angle of a circle is an angle whose vertex is on the center of the circle. An arc is part of a circle that is intercepts by the angle. Definition of a Radian.

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76-77 Degrees and Radians

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  1. 76-77 Degrees and Radians Skill #’s 1-4

  2. Objective • To use degree and radian measure.

  3. Angles • A central angle of a circle is an angle whose vertex is on the center of the circle. • An arc is part of a circle that is intercepts by the angle

  4. Definition of a Radian • One radian is the measure of a central angle θ that intercepts an arc equal in length to the radius r of the circle. Radian Demo http://id.mind.net/~zona/mmts/trigonometryRealms/radianDemo1/RadianDemo1.html

  5. To convert degrees to radians: • To convert radians to degrees

  6. ExampleConverting from Degrees to Radians • 45° • 270°

  7. ExampleConverting from Radians to Degrees

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