1. Acc Math 1 March 1 st What you need today in class: 1. Calculator 2. Turn in homework 3. Pick up new packet – they will need hole-punching WARM-UP: Copy the triangle. Find the measure of each angle. 3x - 4 6x + 12 5x - 10

2. Polygon Basics What’s a polygon? A many-sided, closed figure with sides that are line segments

3. Polygon Basics What’s a polygon? Polygons are classified by their ______ of sides

4. Polygon Basics What’s a polygon? Polygons are classified by their number of sides

5. Polygon basics Name of Polygon # of sides and angles Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon Nonagon Decagon 11-gon Dodecagon N-gon

6. Polygon basics Name of Polygon # of sides and angles Triangle3 Quadrilateral4 Pentagon5 Hexagon6 Heptagon7 Octagon8 Nonagon9 Decagon10 11-gon11 Dodecagon12 N-gonn Diagonal – NOT polygons –

7. Polygon basics Name of Polygon # of sides and angles Triangle3 Quadrilateral4 Pentagon5 Hexagon6 Heptagon7 Octagon8 Nonagon9 Decagon10 11-gon11 Dodecagon12 N-gonn Diagonal – a segment connecting a vertex with a non-adjacent vertex NOT polygons –

8. Polygon Basics EquiangularEquilateralRegular

9. Polygon Basics EquiangularEquilateralRegular All angles equalAll sides equalAll angles and sides equal CONVEX – CONCAVE –

10. Interior Angle Investigation

11. ASSIGNMENT: IN GROUPS:COMPLETE THE CHART (Graphic Organizer #1 – page 4) **GET A BLUE TEMPLATE TO HELP YOU WITH THE SKETCHES