Counting Chickens

chickens

On a special farm chickens live in circular fields, separated by fence posts and straight pieces of fencing

best chickens

Is there a pattern between the number of fence posts and the maximum number of chickens that can be kept?

Are you sure?  How do you know?

Can you explain why?

Hint: The answer when you have 6 posts is not what you might think!

When you have had a play around with this problem you might like to read this article or check out this solution.