interior angle

interior angleAngles 3, 4, 5, and 6 are interior angles. Angles 3 and 6 are alternate interior angles, as are angles 4 and 5.

interior angle

n.1. Any of the four angles formed between two straight lines intersected by a third straight line.2. An angle formed inside a polygon by two adjacent sides.

interior angle

n 1. (Mathematics) an angle of a polygon contained between two adjacent sides 2. (Mathematics) any of the four angles made by a transversal that lie inside the region between the two intersected lines

inte′rior an′gle

n. 1. an angle formed between parallel lines by a third line that intersects them. 2. an angle formed within a polygon by two adjacent sides.

interior angleAngles 3, 4, 5, and 6 are interior angles.

in·te·ri·or angle

(ĭn-tîr′ē-ər)1. Any of the four angles formed inside two straight lines when these lines are intersected by a third straight line.2. An angle formed by two adjacent sides of a polygon and included within the polygon. Compare exterior angle.

Thesaurus

Noun

1.

interior angle - the angle inside two adjacent sides of a polygoninternal angleangle - the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radiansreentering angle, reentrant angle - an interior angle of a polygon that is greater than 180 degrees