

1. 
The sum of the measures of the angles of a regular octagon is 1,080°. Find the measure of one of its angles. 


A. 
135° 
B. 
90° 


C. 
108° 
D. 
120° 


Hint 


2. 
Classify the given angle. 





A. 
right 
B. 
complementary 


C. 
obtuse 
D. 
acute 


Hint 


3. 
Classify the given angle. 





A. 
right 
B. 
obtuse 


C. 
acute 
D. 
complementary 


Hint 


4. 
Find the sum of the measures of the interior angles of the polygon. 





A. 
1080° 
B. 
540° 


C. 
720° 
D. 
360° 


Hint 


5. 
Find the 30° angle. 


A. 

B. 



C. 

D. 



Hint 

