

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


A. 
decagon 
B. 
heptagon 


C. 
pentagon 
D. 
nonagon 


Hint 


2. 
In a tessellations with squares and regular triangles, two squares touch each vertex. How many triangles touch each vertex? 


A. 
3 
B. 
2 


C. 
1 
D. 
4 


Hint 


3. 
Choose the best description for the picture. 





A. 
regular hexagon 
B. 
hexagon 


C. 
regular octagon 
D. 
octagon 


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. 
1072° 
B. 
1080° 


C. 
135° 
D. 
150° 


Hint 


5. 
In the tessellation below, name the polygons and determine how many of each type are at each vertex. 


A. 
six triangles 


B. 
two triangles and two hexagons 


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


D. 
one hexagon and four triangles 


Hint 


