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Photo: DER SPIEGEL
Three weeks ago I gave you my new book "Blind Date with Two Strangers" to a raffle.
I received more than 1500 emails about the racing bike puzzle, there was one winner and four winners.
This week you have another chance - and I think the task is a little easier than it was three weeks ago.
A semicircle and two circle segments are drawn in a triangle - see sketch above.
The radius of the semicircle is half the size of the radius of the two yellow circle segments.
The triangle is right angled.
The two yellow segments have a common area of 128. How big is the dark red colored area of the semicircle?
Please send me your solution by email to holger.dambeck@spiegel.de - with the subject line »semicircle«.
For the raffle I do not need any further information apart from your e-mail address and the solution.
I will only use your data to contact you if you were randomly drawn as the winner and your solution is correct.
Good luck!
If you missed a puzzle from the past few weeks, here are the ten most recent episodes:
The magic number triangle
Built on a gap
The racing bike clique
A king on the run
The carpet repair
Brand diversity at Swiss Post
Is Dieter the thief?
One circle, two points
Guess the numbers - but clever
The legendary great-aunt
Cleaning orgy in the restaurant kitchen
