interior angle

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Related to Interior angles: exterior angles
interior angle
Angles 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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
interior angle
Angles 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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
What do the interior angles of a square add up to in degrees?
Lateral Cephalometric Measurements Cephalometric Measurement Mean Initial VERTICAL ANALYSIS SN-GoGn 32[degrees][+ or -] 38.1[degrees] 8[degrees] Saddle angle 123[degrees][+ or -] 137.6[degrees] 5[degrees] Articular angle 143[degrees][+ or -] 144.2[degrees] 6[degrees] Gonial angle 130[degrees][+ or -] 112.5[degrees] 7[degrees] Sum of interior angles 396[degrees][+ or -] 394.3[degrees] 3[degrees] Jarabak (SGo-NMe) 59%-63% 63.5% ANS-Me/N-Me 55% 58.4% Max.
We had the lines are parallel then we know the alternate interior angles are congruent.
###demonstrate corresponding angles, alternate interior angles,
* The interior angles follow the pattern (n--2)(180[degrees])/n, where n is the number of sides.
Since m[angle]DPQ = m[angle]PQR, (because trapezium PQC'D' is a reflection of trapezium PQCD along the line segment PQ) and m[angle]DPQ = m[angle]RPQ (because alternate interior angles are congruent when a transversals intersects two parallel lines), APQR is an isosceles triangle with m[angle]PQR = m[angle]RPQ.
Perhaps, if we could have such an acquaintance, we could know directly and unhypothetically that its interior angles sum to two right angles.
The quadrilateral's interior angles always add up to 360
Small letters denote the sum of the interior angles in triangles and quadrilaterals.
When parallel lines h and h' are intersected by another line, the sum of the interior angles on the same side is 180[degrees].
All students were given the exact instructions on using pattern blocks to understand the relationship of interior angles in various polygons.

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