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An angle measures 20 degrees more than the measurement of its supplementary angle. What are the measurements of the two angles? 

          An angle measures 20 degrees more than the measurement of its supplementary angle. What are the measurements of the two angles?
An angle measures 20 degrees more than the measurement of its supplementary angle. What are the measurements of the two angles?

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Geometry A Common Core Curriculum
Geometry A Common Core Curriculum
Ron Larson, Laurie Boswell 1st Edition
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HH An angle measures 20 degrees more than the measurement of its supplementary angle.What are the measurements of the two angles?
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Transcript

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00:01 So in this case an angle measures 20 degree more than the supplementary, more than its supplementary angle.
00:07 So whenever the term supplementary is used, we are talking about two angles here okay and therefore if the required angle is x, it would always be there are two angles that are involved x plus 20 because it's 20 degrees more and then you have that is equal to the supplementary is 180 okay.
00:31 So this is what it means, an angle x measures more than its supplementary angle would mean is x plus 20 equals to 180.
00:43 So there are two angles here therefore so therefore we get x plus x is 2x equals to 160 and therefore x is equal to 80 degrees.
00:58 So this is one of the angles...
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