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4th Grade Geometry

TermDefinition
point an exact location
line segment section of a line, bounded by 2 endpoints
line a straight path that goes on forever in 2 directions, infinite length
ray part of a line with 1 endpoint extending infinitely in 1 direction
angle formed when 2 lines or rays meet at a point, called a vertex
straight angle an angle that measures 180 degrees
acute angle an angle that measures less than 90 degrees
right angle an angle that measures exactly 90 degrees
obtuse angle an angle that measures greater than 90 degrees
parallel lines lines that will never touch
perpendicular lines lines that cross and make 90 degrees angles
intersecting lines lines that cross
complimentary angles 2 angles that when added together equal s90 degrees
supplementary angles 2 angles that when added together equals 180 degrees
Created by: user-2003701
 

 



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