10.3 Areas of Regular Polygons

1
10.3 Areas of Regular Polygons

• Essential Question
• How do you find the area of a regular polygon?

2

• You can circumscribe a circle about any regular
  polygon.
• The center of a regular polygon is the center of
  the circumscribed circle.
• Radius distance from the center to a vertex.
• Apothem perpendicular distance from the center
  to a side.

3
Example 1
4
Practice

• Find the measure of each angle.

5
Area of a Regular Polygon
6
Example 2
7
Example 3
8
Practice

• Find the area of the regular polygon and round to
  the nearest inch.

9
Summary

• Answer the essential question in detailed,
  complete sentences.
• How do you find the area of a regular polygon?
• Write 2-4 study questions in the left column to
  correspond to the notes.