1) Polygon ABCD is a regular pentagon. When we say a polygon is "regular", we mean it has all sides congruent and all angles congruent. Like a square has four congruent sides and four congruent angles so a square could also be called a regular quadrilateral. The measure of each angle of an n-sided regular polygon can be found using the formula

180(n?2)

n

\f\f\f\f\f\f\fB' A' (1, 5) 4 (-2, 4) 3 2 function f 1 AABC -5 -4 -3 -2 -1 0 C' 2 3 4 5 X -1 (1, 0) Rule f: -2 -3 -4 -5\f\f