Section Classify Polygons Objective: SWBAT classify polygons

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Presentation transcript:

Section 1.6 - Classify Polygons Objective: SWBAT classify polygons Geometry Section 1.6 - Classify Polygons Objective: SWBAT classify polygons

Introduction to Polygons What is a polygon? Is a closed plane figure with the following properties: 1. It is formed by three or more line segments called sides 2. Each side intersects exactly two sides, one at each endpoint, so that no two sides with a common endpoint are collinear.

Is it a Polygon? Look at your worksheet… Is it a Polygon?

Classify polygons by # sides Name Picture 3 4 5 6 7 Triangle Quadrilateral Pentagon Hexagon Heptagon

Classify polygons by # sides Name Picture 8 9 10 12 n Octagon Nonagon Decagon Dodecagon n-gon

Classifying Polygons Convex: a polygon such that no line containing a side of the polygon contains a point in the interior of the polygon Concave: a polygon that is not convex

Identify polygon

Classifying Polygons Equilateral: a polygon with all sides congruent Equiangular: a polygon with all interior angles congruent. Regular: a convex polygon that is both equilateral and equiangular

Classify Polygon

Homework Textbook Page 45 # 8-14 (even) # 28 and 30