8.5 Notes T.Williams-OW March 02, 2012 Learn to identify and name polygons. 8.5 Classifying Polygons Triangles and rectangles are examples of polygons. A polygon is a closed plane figure formed by three or more line segments. Each line segment forms a side of the polygon, and meets, but does not cross, another line segment at a common point. This common point is a vertex of a polygon. Vocabulary...
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8.5 Notes
T.Williams-OW
March 02, 2012
Learn to identify and name polygons.8.5 Classifying Polygons
Triangles and rectangles are examples of polygons. A polygon is a closed plane figure formed by three or more line segments. Each line segment forms a side of the polygon, and meets, but does not cross, another line segment at a common point. This common point is a vertex of a polygon.
Vocabulary...
8.5 Notes
T.Williams-OW
March 02, 2012
Example 1: Identifying Polygons
Determine whether each figure is a polygon. If it is not, explain why not.
The figure is a polygon. It is a closed figure with 4 line segments.
The figure is not a polygon. It is not a closed figure.
8.5 Notes
T.Williams-OW
March 02, 2012
Example 1: Identifying Polygons
Determine whether each figure is a polygon. If it is not, explain why not.
8.5 Notes
T.Williams-OW
March 02, 2012
Check It Out: Example 1
Determine whether each figure is a polygon. If it is not, explain why not.
8.5 Notes
T.Williams-OW
March 02, 2012
Check It Out: Example 1
Determine whether each figure is a polygon. If it is not, explain why not.
8.5 Notes
T.Williams-OW
March 02, 2012
Polygons are classified by the number of sidesand angles they have.
8.5 Notes
T.Williams-OW
March 02, 2012
Example 2: Classifying Polygons
8.5 Notes
T.Williams-OW
March 02, 2012
Check It Out: Example 2
8.5 Notes
T.Williams-OW
March 02, 2012
A regular polygon is a polygon in which all sides are congruent and all angles are congruent.
Vocabulary...
8.5 Notes
T.Williams-OW
March 02, 2012
Example 3: Identifying and Classifying Regular Polygons
Name each polygon and tell whether it is aregular polygon. If it is not, explain why not.
8.5 Notes
T.Williams-OW
March 02, 2012
Check It Out: Example 3
Name each polygon and tell whether it is aregular polygon. If it is not, explain why not.
8.5 Notes
T.Williams-OW
March 02, 2012
Lesson Quiz: Part I
Determine whether each figure is a polygon. If it in not, explain why not. Name each polygon.
8.5 Notes
T.Williams-OW
March 02, 2012
Lesson Quiz: Part II
Determine whether each figure is a polygon. If it in not, explain why not. Name each polygon.
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