Rodrigo
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 Jan13 accepted test if vertical line intersects another Jan13 comment test if vertical line intersects another I think you can put this as an answer... Thanks! Jan13 asked test if vertical line intersects another Dec20 awarded Caucus Jul18 answered Some examples of applications of Game Theory Jun9 awarded Student Jun9 comment Why is $\sin(\pi/6) = 0.5$? Exactly my question... the "niceness" of 1/2, and also of the 30 degrees or pi/6... It could be that sin(29.451364571234...) would be 1/2... but @JimmyK4542 answer explained it well. There is such beauty in such "simple" matters that I still wonder how many mysteries we may draw from there... Jun9 comment Why is $\sin(\pi/6) = 0.5$? There is a reason why we have 2 legs, not 4, but it's not as simple and elegant as geometry... :) Jun9 comment Why is $\sin(\pi/6) = 0.5$? I was using the length of the bisector as 1, thus my confusion. Thank you all! Jun9 awarded Scholar Jun9 awarded Supporter Jun9 accepted Why is $\sin(\pi/6) = 0.5$? Jun9 comment Why is $\sin(\pi/6) = 0.5$? Thanks, but you just repeated the theorem. How did Euclides get there? Why doesn't it give an irrational number, instead of exactly 1/2? Jun9 comment Why is $\sin(\pi/6) = 0.5$? The perpendicular bisector divides the 60 degrees angle in two 30 degrees. So what? Sorry, I didn't get it. Jun9 asked Why is $\sin(\pi/6) = 0.5$? Feb3 answered Proof that the number of diagonals of a polygon is $\frac{n(n-3)}{2}$ Jan15 awarded Teacher Jan14 comment Splitting a sandwich and not feeling deceived Yes, you're right. But considering the practicality of it, I still recommend my solution. Have you memorized the "Selfridgeâ€“Conway discrete procedure" to apply it in the real world in a moment of hunger? :) Jan14 comment Splitting a sandwich and not feeling deceived The accident could happen cutting in two, too, even being an easier division. Anyway, @VividD asked for a "such mechanism", not for a "better one". Jan14 comment Splitting a sandwich and not feeling deceived But why would that person do a large piece, if he/she wouldn't have the chance to eat it? He/she would try the hardest to make the 3 the same size.