1. Warm Up 1.Let p be the statement “a rectangle is a quadrilateral.” and q be the statement “It has four sides”. Write q => p 2.Write the converse: “If you understand sections 2.1-2.3, then you will do well on our quiz today.”

2. Lesson 2-6 Polygons

3. What looks like a triangle? Polygon = the union of two segments in the same plane where each segment intersects exactly two others, one at each of its endpoints.

4. Parts of Polygons Adjacent Sides: Consecutive Vertices: Diagonal:

5. Names of Various Polygons 3 sides - 4 sides - 5 sides - 6 sides - 7 sides - 8 sides - 9 sides - 10 sides – 23 sides – 100 sides -

6. Hierarchy (Family Tree) Figure Polygon Triangle isosceles triangle scalene equilateral triangle