answersLogoWhite

0

The formula for finding the sum of the interior angles of a polygon is:

180 x (n - 2) where n = the number of sides.

This comes from knowing the following: Given a polygon of n sides, there are n - 2 triangles you can form by connecting a given vertice (point where two sides meet) to all other vertices of the polygon. The 180 in the formula is the sum of the angles in a triangle.

Therefore, the sum of the interior angles (or, as you put it, the angle sum) of your 11 sided figure would be:

180 x (11 - 2) = 180 x (9) = 1620 degrees.

Hope that answers your question and gets you on your way to figuring out other geometry problems.

User Avatar

Wiki User

16y ago

Still curious? Ask our experts.

Chat with our AI personalities

BeauBeau
You're doing better than you think!
Chat with Beau
ReneRene
Change my mind. I dare you.
Chat with Rene
MaxineMaxine
I respect you enough to keep it real.
Chat with Maxine

Add your answer:

Earn +20 pts
Q: What is the angle sum for an eleven sided polygon?
Write your answer...
Submit
Still have questions?
magnify glass
imp