Polygon Test
Which polygon is always irregular?
Square
Trapezoid
Triangle
Heptagon
Name the polygons that satisfy the conditions. 
a.  interior angle sum = 900o


b.  Exterior angle = 40o


c.  Interior angle = 120o
heptagon
?
nonagon
?
hexagon
?
What is the measure of an exterior angle of a
regular 17-gon?
Round to the tenths place!
Which figure will tessellate alone (without other
figure)?
A
B
C
How many sides does a regular polygon have
if each interior angle measures 144o?
Laura wants to pick a tiling for her kitchen backsplash.
If she wants 3 tiles to fit together perfectly at each
vertex, which tiling should she choose?
C
A
D
B
Find the value of x. 
x =
Find the value of x. 
x =
The pentagon formed below is composed of 5 rays. 
What is the degree measure of angle x?
108
112
72
96
Select all the concave figures. 
C
A
B
D
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