Interior and exterior angles in polygons

For a regular NONAGON, find the measure of one interior angle. (a)   $$\degree$$  

For a regular 15-gon, find the measure of one interior angle. (a)   $$\degree$$  

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

(a)  

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

(a)  

Select the correct values for a and m.

What is the value of each exterior angle of a regular 20-gon? (a)   $$\degree$$   

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

Find the number of sides of the polygon. 

(a)  

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

(a)  

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

(a)  

Match the following.