10.6. Area and Perimeter of Regular Polygons http://www.ck12.org
10.6 Area and Perimeter of Regular Polygons
Learning Objectives
- Calculate the area and perimeter of a regular polygon.
Review Queue
- What is a regular polygon?
Find the area of the followingregular polygons. For the hexagon and octagon, divide the figures into rectangles
and/or triangles.
3.
- Find the length of the sides in Problems 2 and 3.
Know What?The Pentagon in Arlington, VA houses the Department of Defense, is two regular pentagons with the
same center. The entire area of the building is 29 acres (40,000 square feet in an acre), with an additional 5 acre
courtyard in the center. The length of each outer wall is 921feet. What is the total distance across the pentagon?
Round your answer to the nearest hundredth.