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Unformatted text preview: 10° 30' 15'' 210° 40' 45'' 1.4 Angle Measure in Degrees and Radians Tuesday, August 24, 2010 10:06 AM Ch_1 Page 1 10° 30' 15'' 210° 40' 45'' ____________________________________ DOD Part2 ±²³´µ¶·²·¸³· ¹ º»² Radian: When the central angle of a circle intercepts an arc that has the same length as the radius of the circle, the measure of this angle is defined as 1 radian (1 rad) ¼ ¹ ½ ¾ *** If θ is a complete counterclockwise revolution, then ½ ¹ ¿À¾Á ½Â 2 π rad = 360° or π rad = 180° To convert from degrees to radians, multiply by » ÃÄÅ To convert from radians to degrees, multiply by ÃÄÅ » ____________________________________ Examples Express in radians. 45° 120° radian Ch_1 Page 2 Express in degrees. ± ² ³ ´± µ¶ Ch_1 Page 3...
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 Spring '11
 byrns
 Math, Angles, 45°, 1 rad, 45, 1 Radian

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