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MVMS MSM2 Angles and Polygons Vocab

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
acute angle   less than 90 degrees  
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obtuse angle   between 90 degrees and 180 degrees  
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right angle   exactly 90 degrees  
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straight angle   exactly 180 degrees  
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complementary angles   two angles that are 90 degrees  
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supplementary angles   two angles that are 180 degrees  
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vertical angles   opposite angles around a vertex *congruent  
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adjacent angles   two angles that share a common side "next to"  
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alternate interior angles   inside the parallel lines and opposite sides of the transversal *congruent  
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alternate exterior angles   outside the parallel lines and opposite sides of the transversal *congruent  
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corresponding angles   on the same side of the parallel lines and the transversal *congruent  
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triangle   3 sided polygon  
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quadrilateral   4 sided polygon  
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pentagon   5 sided polygon  
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hexagon   6 sided polygon  
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heptagon   7 sided polygon  
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octagon   8 sided polygon  
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nonagon   9 sided polygon  
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decagon   10 sided polygon  
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transversal line   a line that intersects two parallel lines  
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