Chapter 9: Polygons

Question 1

Theorem 46: The sum of the measures of the interior angles of a polygon with n sides is

Answer 1

180(n-2)

Question 2

Theorem 47: The sum of the measures of the exterior angles of any polygon (one exterior angle per vertex) is

Answer 2

360

Question 3

Definition 49: A regular polygon is

Answer 3

a convex polygon that is both equilateral and equiangular

Question 4

Theorem 48: The measure of each interior angles of a regular polygon is

Answer 4

180(n-2)/n, where n is the number of sides of the regular polygon

Question 5

Definition 50: The perimeter of a polygon is

Answer 5

the sum of the lengths of its sides

Question 6

Theorem 49: The perimeter of a regular polygon with n sides and side length s is

Answer 6

equal to ns