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math geometry vocabulary

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
a part of a line that has a starting point and continues on forever.   ray  
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Angle 90 degrees.   right angle  
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An exact point in space.   point  
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a straight path of points that goes on and on and never ends   line  
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two lines that never ever intersect and keep going forever and ever ,never stops but never intersects   parallel lines  
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ongoing lines that pass through the same point.   intersecting lines  
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ongoing lines that form 90 degree angles all four corners.   perpendicular lines  
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a part of a line with two d points.   line segment  
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A 90 degree angle or an angle that you can make a square in the corner.   Right angle  
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angle that is bigger than a right angle. Larger than a 90 degree angle.   obtuse angle  
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angle that is smaller than a right angle.   acute angle  
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A tool used o measure angles   protractor  
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A closed plane figure   polygon  
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the point where two sides meet   vertex  
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e line segment of a polygon   sides  
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