January 26, 2016
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Intro to Polygons
January 26, 2016
Equilateral Polygon
Polygon with all sides congruent
Equiangular Polygon
Polygon with all angles congruent
Convex Polygons
Polygon whose interior angles are all less than or
equal to 180 degrees
Concave Polygons
Polygon with at least one interior angle that
measures greater than 180 degrees
January 26, 2016
Naming polygons
We name polygons by the number of sides they
have.
Number of Sides Name of Polygon
3
4
5
6
7
8
9
10
n
triangle
quadrilateral
pentagon
hexagon
heptagon
octagon
nonagon
decagon
n-gon
Name these polygons by their sides, whether
they are regular or irregular, and whether they
are convex or concave.
January 26, 2016
Find the Area and the Perimeter
A(-6, 3)
B
A
B(2, 7)
C(5, 3)
C
January 26, 2016
Homework Worksheet
Due Wednesday because of
counselors tomorrow.
Projects due tomorrow when you
walk into class.