point - the location, line - no end points, extends to eternity in both directions , line segment - 2 end points, finite length, part of a line, ray - one end point, goes to infinity in one direction only, plane - 2 dimensional flat surface, acute angle - < 90 degrees, right angle - 90 degrees, obtuse angle - 90 < angle < 180 degrees, straight angle - 180 degrees, reflex angle - 80 < angle < 360 degrees, full circle - 360 degrees,

point, line, line segment, ray, plane, angles

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