I Solved This Geometry Puzzle In LITERALLY 1 Second!
Catriona Agg’s Math Puzzle Challenge 5
Perhaps the UK government can use this puzzle instead to find innovators and disruptors to work for them instead.
Except the requirement would be if the candidate can spot the solution in 1 second. Okay, I get it. 1 second is a bit too harsh. Let’s say 10 seconds then.
But yeah the solution is literally one line and that’s it. Good luck!
Now grab your pen and paper and give this a go, when you are ready, keep reading for the solution.
Solution
This is that one line I am talking about.
In case you can’t see each orange triangle has the same area as its corresponding yellow triangle, I have added a few lines to indicate their base and height.
And if you still can’t quite see that, the above diagram will make sense!
The area is therefore 15.
5 down. 309 more to go!
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