

1. 
What is the name of a polygon that has five sides? 


A. 
decagon 
B. 
nonagon 


C. 
heptagon 
D. 
pentagon 


Hint 


2. 
The sum of the measures of the angles of a regular octagon is 1080°. What is the measure of each angle? 


A. 
135° 
B. 
108° 


C. 
144° 
D. 
120° 


Hint 


3. 
In the tessellation shown below, name the polygons and determine how many of each type are at each vertex. 





A. 
2 octagons and 1 square 
B. 
1 octagon and 4 squares 


C. 
4 octagons and 1 square 
D. 
1 octagon and 2 squares 


Hint 


4. 
By drawing triangles, you can find that all of the measures of the angles in an octagon add up to 1080°. Find the measure of one angle in a regular octagon. 


A. 
1080° 
B. 
150° 


C. 
1072° 
D. 
135° 


Hint 


5. 
Which of the following angle measures represents the angles of a regular polygon that can be used to make a tessellation? 


A. 
140° 
B. 
144° 


C. 
60° 
D. 
108° 


Hint 


