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# Geometry vocab 5

line straight, continues in both directions, does not end
point exact position or location
ray straight, part of a line, one endpoint and continues in one direction exact position or location straight, part of a line, has two endpoints straight, part of a line, one endpoint and continues in one direction
line segment straight, part of a line, has two endpoints
angle formed by two rays or line segments that share an endpoint
vertex endpoint of an angle where the two line segments or rays meet
protractor tool used to measure angles
degree amount measuring an angle
right angle measures 90˚, a square corner
acute angle measures less than a right angle, a “cute” angle
obtuse angle measures more than a right angle, a “big” angle
straight angle a line measuring 180˚
complementary angles 2 angles in which their sum is 90°
supplementary angles 2 angles in which their sum is 180°
intersecting lines lines that cross at one endpoint forming angles
perpendicular lines intersecting lines that cross to form right angles
parallel lines lines that never cross, do not form angles, always the same distance apart
Created by: crstone