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# A fun mathematics riddle (1 gif)

Posted in Pictures   2 Oct 2009   / 18184 views

How can 64 be equal to 65?

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1.
no 8 year s ago MARK AS SPAM
no it's not an actual fit. If you do it yourself, graphically or on paper, there will be some residual area, whose area is 1sq.

Basically the second figure has a gap in between the shapes whose area is 1sq. Hence 65-1=64
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zero br 8 year s ago MARK AS SPAM
no, it doesn't. I didn't try to work out the maths yet, but I'm sure there's no such gap.

Try it on paper, see if your theory survives and if it does not then let's come up with another explanation.
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Gasha 8 year s ago MARK AS SPAM
It does not fit. Just look at the diagonal line.
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oceanic 8 year s ago MARK AS SPAM
Actually first poster is right. The diagonal line between red and green falls 3 squares in the length of 8 sqaures while the line between blue and orange falls 2 squares in the length of 5.
Now since 3/8 does not equal 2/5 there is not a straight line when the pieces are reassembled in the second manner. There is in fact a small gap equalling 1 square.

If you don't believe that, this trick is possible thanks to the fibonacci series 1,1,2,3,5,8,13,21.. and so on. It gets even harder to see when done in a larger format for instance 13 by 13 or 21 by 21.
Jordan                    show commment
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severe_009 8 year s ago MARK AS SPAM
I really dont understand what you are saying but i believe the 2nd figure is not perfectly fit... it has a gap... FYOU CHINESE!
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WYKOP 8 year s ago MARK AS SPAM
WYKOPPPPPPP KURRRWAAAAAAAAAAAAAA!!!!!1111111111111
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diegopol 8 year s ago MARK AS SPAM
bullshit
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chinese 8 year s ago MARK AS SPAM
severe_009,

FUCK YOU Severe, you racist SHIT
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snudis 8 year s ago MARK AS SPAM

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Frenchy 8 year s ago MARK AS SPAM
yeah fuck u chinese, bunch of cheaters no wonder all they produce is so shity if it has gaps in it when the y copy it

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