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12 terms

Geometry Set 1

Geometry Vocabulary 5th grade
STUDY
PLAY
point
an exact location in space
line
an endless collection of points along a straight path
line segment
part of a line that has two endpoints
ray
part of a line that has one endpoint and extends endlessly in the other direction
plane
an endless, flat surface that is named by any three points not on the same line
angle
two rays that have the same endpoint
vertex
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
degrees
what we measure angles in