1.4 Angle Measure in Degrees and Radians

1.4 Angle Measure in Degrees and Radians - 10 30' 15'' 210...

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Agenda 1. Classwork 2. Lesson: 1.4 Angle Measures in Degrees and Radians _______________________________________ Lesson: 1.4 Angle Measures in Degrees and Radians Measure angles and arcs in degrees and radians 1. Change from degree/radians to radians/degrees 2. Goals: DOD Central Angle of a Circle: Angle whose vertex is the center of the circle. Subdivisions of Degrees. Minutes: ± ² ³´µ¶·³´¶¸¹º»¼½¾¿ Seconds: À ² ³´ ÀÀ · ³´¶¾½Áºþ ¿ To convert from degrees to minutes, use Ä ÅÆ Ç È É To convert from minutes to seconds, use Ä ÅÆ ÇÇ È Ç É To go in the other direction, use the reciprocals of above. ____________________________________ Examples Express in degrees, minutes, seconds ʴ˳±¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ÌÊ Ê ± Express in decimal degrees (to the nearest hundredth of a degree)
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