1. VOCABULARY GEOMETRIC FIGURES

2. POLYGON Is a closed plane figure formed by three or more line segments that meet at points called vertices.

3. HEPTAGON Is a closed plane shape formed by SEVEN line segments.

4. NONAGON Is a closed plane shape formed by NINE line segments.

5. REGULAR POLYGON A polygon with all sides congruent and all angles congruent.

6. CONGRUENT A figure with all the same length line segments and has the same measurement for each angle.

7. EQUILATERAL TRIANGLE A triangle with three congruent sides.

8. ISOSCELES TRIANGLE A triangle with 2 congruent sides.

9. SCALENE TRIANGLE A triangle with no congruent sides.

10. QUADRILATERALS A closed figure made by four sides and four angles.

11. PARALLELOGRAM A closed shape with opposite sides congruent and parallel.

12. RECTANGLE Is a special parallelogram with four right angles and four pairs of perpendicular lines.

13. SQUARE Is a special parallelogram with four congruent sides and four right angles.

14. RHOMBUS A special parallelogram with four congruent sides.

15. TRAPEZOID A quadrilateral with exactly one pair of parallel lines.

16. POLYHEDRONS A solid figure that has three dimension: height, width, length with faces that form polygons.

17. PRISM Is a polyhedron that has two congruent polygons as bases.

18. PYRAMID Is a polyhedron with only one base.

19. BASES The bottom shape or face of a solid object.

20. LATERAL FACES The polygons that connect with the base to form the sides of a polyhedron.

21. EDGES Is a line segment that joins to vertices.

22. VERTEX OR VERTICES Are a point where two or more line segments meet.

23. NETS A pattern that you can cut and fold to make a model of a solid shape.