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Supplementary angles

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Supplementary angles
Definition
Wikipedia articleDbpedia source
Supplementary angles are pairs of angles that add up to 180 degrees. Thus the supplement of an angle of x degrees is an angle of (180 − x) degrees. If the two supplementary angles are adjacent (i.e. have a common vertex and share just one side), their non-shared sides form a straight line. However, supplementary angles do not have to be on the same line, and can be separated in space. For example, adjacent angles of a parallelogram are supplementary, and opposite angles of a cyclic quadrilateral (one whose vertices all fall on a single circle) are supplementary. If a point P is exterior to a circle with center O, and if the tangent lines from P touch the circle at points T and Q, then ∠TPQ and ∠TOQ are supplementary.
Supplementary angles
English Wikipedia http://en.wikipedia.org/wiki/Supplementary_angles
Spanish wikipedia http://es.wikipedia.org/wiki/?ngulos_suplementarios
Wiki page external link http://www.mathopenref.com/anglesupplementary.html http://www.mathopenref.com/tocs/anglestoc.html

Conceptual map: Supplementary angles

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Fecha publicación: 29.8.2014

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