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parallel lines, angle and triangle classification, similarity vocab

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Term
Definition
similar triangles   triangles in which each pair of corresponding angles are congruent and each pair of corresponding sides are proportional  
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scale factor   ratio that describes the relationship between sides of similar figures  
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vertical angles   non-adjacent angles formed by opposite rays. these angles are always congruent (their measures are always equal)  
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linear pair   adjacent angles formed by the intersection of two lines. these angles are always supplementary (their measures always have a sum of 180 degrees)  
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right triangles   triangles in which one angle measures 90 degrees  
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acute triangles   triangles in which each angle measures less than 90 degrees  
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equilateral triangles   triangles in which all sides have equal measures  
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obtuse triangles   triangles in which one angle measures more than 90 degrees  
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scalene triangles   triangles in which no sides have equal measures  
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isosceles triangles   triangles in which two sides have equal measures  
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congruent triangles   triangles in which each pair of corresponding angles are congruent and each pair of corresponding sides are congruent  
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Created by: jmyers263
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