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Stack #37281

Line Straight and extends forever in both directions
Ray Has a beginning point and extends forever in one direction
Vertex The shared point where two rays begin.
Acute angle Am angle which is less than 90 degrees
Obtuse angle An angle which is greater than 90 degrees
Line segment Part of a line. Has a start point and an end point
Right angle Measures exactly 90 degrees
Parallel lines Two lines that are always the same distance apart. (Never cross)
Perpendicular lines Two lines that cross (intersect) at 90 degrees
Angle Made when two rays meet at a vertex
Protractor An instrument used to measure the degrees in an angle
Arms The name for the sides of an angle
Created by: highda