I saw this puzzle earlier today and thought it was clever enough to repost.

*Without measuring and using only the information on the image, can you calculate the radius of the circle?*

If you get the answer, say so in the comments, but don’t write the answer itself!

Done! It just took a cup of Coffee to kick in to jet the answer.

“GET” not jet… Thank you auto spelling.

Duh, I even wrote down some equations before it hit me.

As engineers, we try to solve everything with equations…It took me like 6 minutes to realize that an equation was not going to do it… it’s simply a deduction and trial and error puzzle. Very clever.

I like!

I got the diameter right away.

The radius… still working on it… seems a bit more tricky…

mmmhhhhhh……. back to my abacus.

took me entirely too long…. but i finally got it… and felt silly. nice find!

that’s an easy one! dying to post the answer 🙂