The encircled goat puzzle
Yes, this one is going to be wickedly hard!
A field has the shape of a circle of radius 100m and is enclosed by a circular fence. A goat is attached by a rope to a hook, at a fixed point on the fence. To stop the goat from getting too fat, the farmer wants to make sure that it can only reach half of the grass in the field. How long should the rope be?
Big Thanks to Bilbao for submitting!
Answers can be submitted below in the comment section. Will keep a list, though, of those who get it right:
- AlexC– close
- mileyfanchelsea– close