CHAPTER11

Polygons

In This Chapter

  • Identifying and describing polygons
  • Finding the measures of the interior and exterior angles of polygons
  • Understanding and determining the perimeter and area of polygons

Now that you’ve learned about triangles, let’s extend those properties to look at other polygons that are closed-plane figures with straight lines and greater than three sides. In Euclidean geometry, these figures are primarily identified by the number of sides, so in this chapter, we help you explore relationships among a polygon’s sides and angles.

The most important measures of polygons are perimeter and area, which can be applied to real-life ...

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