15 terms

7.3 Polygon Stuff

STUDY
PLAY
Triangle
3 sides
Quadrilateral
4 sides
Pentagon
5 sides
Hexagon
6 sides
Heptagon
7 sides
Octagon
8 sides
Nonagon
9 sides
Decagon
10 sides
Dodecagon
12 sides
Pentadecagon
15 sides
How Find The Sum Of Interior Angles
180(n-2)
Sum Of Exterior Angles of a Polygon
360
n(n-3) divided by 2
Number of Diagonals
Characteristics of REGULAR Polygon
all sides congruent and all angles congruent
Measure of each exterior angle of an equiangular polygon
360 divided by n