exterior angle

exterior angleAngles 1, 2, 7, and 8 are exterior angles.

exterior angle

n.1. The angle between any side of a polygon and an extended adjacent side.2. Any of the four angles that do not include a region of the space between two lines intersected by a transversal.

exterior angle

n 1. (Mathematics) an angle of a polygon contained between one side extended and the adjacent side 2. (Mathematics) any of the four angles made by a transversal that are outside the region between the two intersected lines

exte′rior an′gle

n. 1. an angle formed outside parallel lines by a third line that intersects them. 2. an angle formed outside a polygon by one side and an extension of an adjacent side; the supplement of an interior angle of the polygon. [1885–90]

exterior anglesAngles 1, 2, 7, and 8 are exterior angles. Angles 1 and 8 and angles 2 and 7 are alternate exterior angles.

ex·te·ri·or angle

(ĭk-stîr′ē-ər) The angle formed between a side of a polygon and an extended adjacent side. Compare interior angle.

Thesaurus

Noun

1.

exterior angle - the supplement of an interior angle of a polygonexternal angleangle - the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radianship - (architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof

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