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        Definition 
        
        | Formed by two rays that have the same endpoint. |  
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        Definition 
        
        | The common endpoint of an angle. |  
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        Definition 
        
        | The rays are the sides of the angle. |  
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        Definition 
        
        | The area inside of the angle. |  
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        Definition 
        
        | The area outside of an angle |  
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        Definition 
        
        | The units we measure angles in. |  
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        Definition 
        
        | A tool used to measure and draw angles. |  
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        Definition 
        
        | An angle that measures between 0 and 90 degrees. |  
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        Definition 
        
        | An angle that measures 90 degrees. |  
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        Definition 
        
        | An angle that measures between 90 and 180 degrees. |  
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        Definition 
        
        | An angle that measures  180 degrees. |  
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