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An angle on the interior of a plane figure. ... Examples: The angles labeled 1, 2, 3, 4, and 5 in the pentagon below are all interior angles. Angles 3, 4, 5, and 6 in the second example below are all interior angles as well (parallel lines cut by a transversal).
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www.mathwords.com/i/interior_angle.htm
www.mathwords.com/i/interior_angle.htm
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An Interior Angle is an angle inside a shape. ... Note: If you add up the Interior Angle and Exterior Angle you get a straight line, 180°. (See Supplementary Angles) ... Math is Fun...
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www.mathsisfun.com/geometry/interior-angles.html
www.mathsisfun.com/geometry/interior-angles.html
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For any pair of parallel lines 1 and 2, that are both intersected by a third line, such as line 3 in the diagram below, angle A and angle D are called alternate interior angles. Alternate interior angles have the same degree measurement.
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www.mathleague.com/help/geometry/angles.htm
www.mathleague.com/help/geometry/angles.htm
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Internal and external angle - Wikipedia, the free encyclopedia
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In geometry, an interior angle (or internal angle ) is an angle formed by two sides of a simple polygon that share an endpoint in. This angle must be an angle on the inner side of the polygon to b...
en.wikipedia.org/wiki/Internal_and_external_angle
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Defines what is meant by 'interior of an angle' ... Try this Drag an orange dot. The point K will indicate if it is within the interior of angle ∠ABC (shown in yellow). Or, drag the point K.
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www.mathopenref.com/angleinterior.html
www.mathopenref.com/angleinterior.html
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Activity: Interior Angle Theorem [PDF] ... This activity is designed to help students discover the Interior Angle Theorem: The sum of the measures of the interior angles of a triangle is 180°. ... D. Michael Hamm...
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mathforum.org/mathtools/activity/5825/
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Search for "interior angle" in all of MSN Encarta ... 1. angle inside a polygon: the angle formed between two adjacent sides of a polygon and lying in its interior. The sum of the interior angles of any polygon is equal to the number of its sides minus two and multiplied by 180º.
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encarta.msn.com/dictionary_1861692521/interior_angle.ht...
encarta.msn.com/dictionary_1861692521/interior_angle.html
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Definition of interior angle at Dictionary.com with free online dictionary, pronunciation, synonyms, and translation. Word of the Day and Crossword Puzzles. ... interior angle - 3 dictionary results...
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dictionary.reference.com/browse/interior+angle
dictionary.reference.com/browse/interior+angle
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