SOLUTION: How many interior angles does an undecagon have? A.) 7 B.) 9 C.) 11

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: How many interior angles does an undecagon have? A.) 7 B.) 9 C.) 11       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 4298: How many interior angles does an undecagon have? A.) 7
B.) 9
C.) 11
D.) 110
Answer by AnlytcPhil(1806) About Me  (Show Source):
You can put this solution on YOUR website!
How many interior angles does an undecagon have? A.) 7 B.) 9 C.) 11 D.) 110
A polygon with n sides always has n interior angles.
The answer isn't 7 because that's a heptagon or septagon.
The answer isn't 9 because that's a nonagon.
It isn't 110 because there is no name for a 110-sided polygon.
Hint: In the word "undecagon" the "un" means "one" and the "deca" means "ten". What is one plus ten?
Edwin