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Geometry Vocabulary 5th grade


an exact location in space


an endless collection of points along a straight path

line segment

part of a line that has two endpoints


part of a line that has one endpoint and extends endlessly in the other direction


an endless, flat surface that is named by any three points not on the same line


two rays that have the same endpoint


the endpoint of a ray

right angle

an angle that measures exactly 90 degrees

straight angle

an angle that measures exactly 180 degrees

acute angle

an angle that is less than 90 degrees

obtuse angle

an angle that is more than 90 degrees and less than 180 degrees


what we measure angles in

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