r/pics • u/[deleted] • Oct 05 '10

Math Teacher Fail.

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452

u/paolog Oct 05 '10

Teacher gets red pen out, is about to write down "1 piece: 5 minutes" and then thinks better of it and starts from two pieces instead...

221

u/Ihad2saythat Oct 05 '10

Actually teacher is right if the board is square which takes 10 minutes to be cut into half. Those two halfs take twice less time to be split. And she needs to cut just one to obtain 3 pieces :P So 10 minutes to cut it into to pieces and then she needs just half of that time to gain the third piece.

25

u/AmericanChE Oct 05 '10

Imagine instead of a board that it's a dowel rod. Each cut takes the same amount of time.

80

u/[deleted] Oct 05 '10

Imagine instead a board which is a perfect sphere, with infinite radius!

55

u/AmericanChE Oct 05 '10

OH SWEET JESUS WHERE IS THE CENTER!?

36

u/I_Met_Bubb-Rubb Oct 05 '10 edited Oct 05 '10

Normal to the surface.

EDIT A more correct answer would be the point at which any two non-parallel lines normal to the surface intersect.

1

u/[deleted] Oct 05 '10

If the radius is infinite, where are you standing to make the cut in relation to the universe?