Interior And Exterior Angles Of A 20 Sided Polygon

If you count one exterior angle at each vertex the sum of the measures of the exterior angles of a polygon is always 360.

Interior and exterior angles of a 20 sided polygon. This means that all of the interior angles of any 20 sided polygon add up to 3240. Usually the interior and exterior angles add up to 180. What is the exterior angle of a regular 24 sided polygon.

Even though we know that all the exterior angles add up to 360 we can see by just looking that each angle a text and and angle b are not congruent. After about 6 sides mathematicians usually refer to these polygons as n gons so a 23 sided polygon would be called a 23 gon. Although you know that sum of the exterior angles is 360 you can only use formula to find a single exterior angle if the polygon is regular.

180 162 18 so 18 is the exterior angle. The measure of each interior angle of an equiangular n gon is. I believe it may be a 20 sided polygon a 20 gon.

Usually the interior and exterior angles add up to 180. If each interior angle is equal to 144 then how many sides does a regular polygon have. How can i calculate the exterior angle of a 30 sided polygon.

3240 20 162. 180 162 18 so 18 is the exterior angle. The sum of exterior angles of any polygon is 360 degrees.

Consider for instance the pentagon pictured below. First you need to find the interior angle. To find the size of each interior angle you divide this sum by 20.