point - an exact location in space, line - a straight path that goes on in both directions, ray - a line with one endpoint, line segment - parts of a line that has two endpoints, angle - figure formed by two rays with the same endpoint (vertex), vertex - the point common to the two rays connected that form an angle, parallel - lines that are the same distance apart from each other but will never meet or cross (intersect), intersecting - lines that cross at any point, perpendicular - lines that intersect at a 90°(right) angle, acute - angle with a measure greater than 0° and less than 90°, right - angle that measures exactly 90°, obtuse - angle with a measure greater than 90° and less than 180°, straight - angle that measures exactly 180°, reflex - angle with a measure greater than 180° and less than 360°, complementary angles - when 2 or more angles have a sum of 90 degrees, supplementary angles - when 2 or more angles have a sum of 180 degrees, 360 - the number of degrees in a full circle,

Geometry

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