This problem comes from Martin Gardner's book "My Best Mathematical and Logic Puzzles." Your goal is to find the value of x. Very simple, just look at it! This is a quarter of a circle.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
No explanations have been posted yet. Check back later!