6.2. Exterior Angles in Convex Polygons http://www.ck12.org
5.
- The exterior angles of a quadrilateral arex◦, 2 x◦, 3 x◦,and 4x◦.What isx?
Find the measure of each exterior angle for each regular polygon below:
- octagon
- nonagon
- triangle
- pentagon
- 50-gon
- heptagon
- 34-gon
14.ChallengeEach interior angle forms a linear pair with an exterior angle. In a regular polygon you can use two
different formulas to find the measure of each exterior angle. One way is^360
◦
n and the other is 180
◦−(n−^2 )^180 ◦
n
(180◦minus Equiangular Polygon Formula). Use algebra to show these two expressions are equivalent.
15.Angle PuzzleFind the measures of the lettered angles below given thatm||n.