Interior & Exterior Angles of Polygons

For a regular NONAGON, find the measure of one interior angle.

For a regular 15-gon, find the measure of one interior angle.

If the sum of interior angles of a polygon is  $900\degree$  , how many sides does the polygon have?

If the sum of the interior angles of a polygon is $2880\degree$ , how many sides does the polygon have? 

What is the value of each exterior angle of a regular 20-gon?

The measure of an exterior angle of a regular polygon is $45\degree$  .

Find the number of sides of the polygon. 

Practice: The measure of an interior angle of a regular polygon is  $144\degree$  . How many sides does the polygon have?

Practice:  If the measure of one interior angle of a regular polygon is $160\degree$  , find the number of sides.