# exterior angle

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## 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 angles**

Angles 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.

ThesaurusAntonymsRelated WordsSynonyms

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Noun | 1. | exterior angle - the supplement of an interior angle of a polygonangle - the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians hip - (architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof |

Translations

## exterior angle

*n*(Math) → Außenwinkel

*m*

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