Match the following. 1. a line segment that is part of a polygon polygon 2. a polygon with 3 sides side of a polygon 3. a polygon whose sides are all the same length and all of its angles are the same measure triangle 4. a closed figure made up of line segments regular polygon 5. the point where two line segments, lines, or rays meet to form an angle vertex 6. a polygon with 4 sides quadrilateral