1. M4G1 Students will define and identify the characteristics of geometric figures through examination and construction. M4G2 Students will understand fundamental solid figures.

2. Opening

3.  The word polygon means “many angles”  A two dimensional object  A closed figure

4.  Made up of three or more straight line segments  There are exactly two sides that meet at a vertex  The sides do not cross each other

7. Side: One of the line segments that make up a polygon. Vertex: point where two sides meet.

8. Regular Polygon: all sides have equal length and all the angles have equal measure.

9. Triangle: a three sided polygon

10. Quadrilateral: a four sided polygon. A quadrilateral that is a regular polygon is called a square.

11. Pentagon: a five sided polygon

12. Hexagon: a six sided polygon

13. A heptagon has seven sides.

14. Octagon: an eight sided polygon

15. Decagon: a ten sided polygon

16. Triangle eight sides Heptagon three sides Octagonseven sides Work Session

17. Pentagon four sides Hexagonfive sides Squaresix sides

18. Regular or Irregular 1. 2. 3.

19. Practice on Your Own!

20. Closing: How many sides does each polygon have? ______________ Do all polygons look the same? _____________ Can I know the name of a shape just by looking at it? ______________________