

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


A. 
nonagon 
B. 
heptagon 


C. 
pentagon 
D. 
decagon 


Hint 


2. 
The sum of the measures of the angles of a regular octagon is 1,080°. Find the measure of one of its angles. 


A. 
108° 
B. 
135° 


C. 
90° 
D. 
120° 


Hint 


3. 
In a tessellations with squares and regular triangles, two squares touch each vertex. How many triangles touch each vertex? 


A. 
1 
B. 
4 


C. 
3 
D. 
2 


Hint 


4. 
In the tessellation below, name the polygons and determine how many of each type are at each vertex. 


A. 
one hexagon and four triangles 


B. 
none of the other choices; different vertices have different polygons forming them 


C. 
two triangles and two hexagons 


D. 
six triangles 


Hint 


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


A. 
144° 
B. 
108° 


C. 
140° 
D. 
60° 


Hint 


