Question 943532
sum of exterior angles of a polygon=360 degrees
exterior angle=360/n where n is the number of sides
exterior angle=360/20=18 degrees ANSWER 1 The exterior angles of a regular polygon with 20 sides each measure 18 degrees.
A nonagon has 9 sides so
exterior angle=360/9=40 degrees ANSWER 2 The exterior angles of a regular nonagon each measure 40 degrees