median
don steward
mathematics teaching 10 ~ 16

Sunday, 22 March 2009

self-similar

John Mason posed the problem of finding shapes that when cut in half, by one straight cut, produce two shapes that are both similar to the original

three seemed to be the most that anyone at the conference found - but there may well be more...

what happens to the number of sides that a polygon has when you cut it with a straight line?

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