Interior Angles of
Polygons
Divide each polygon into triangles so that they share one vertex. Then, complete the table below.
|
Name of Polygon |
Number of Sides |
Number of Triangles |
Total Degrees |
|
Triangle |
|
|
|
|
Quadrilateral |
|
|
|
|
Pentagon |
|
|
|
|
Hexagon |
|
|
|
|
Heptagon |
|
|
|
|
Octagon |
|
|
|
|
Dodecagon |
|
|
|
|
|
|
|
|
|
N-gon |
N |
|
|
Define
interior angles using your own words.
What
is the formula for finding the number of degrees in the interior angles of a
polygon?
Describe
in your own words how you went about finding this formula.