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Subject: Re: Complex number quiz
Date: Wed, 11 Sep 2002 01:17:56 +0100
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"Christopher R. Carlen" wrote in message
> Frank Bemelman wrote:
> > "markp" schreef in bericht
> > news:aljc1c$1qid49$1@ID-100912.news.dfncis.de...
> >>If you want to while away a few more hours, how about this one:
> > [snip]
> > A real nasty one, looks simple:
> > A square. Draw a quarter cirle, radius = size of square, from each
> > corner of the square. This figure looks like a square with a simple
> > flower inside it. The heart of this flower has a cushion shape.
> > Calculate the area this part occupies. Subtract pi/10 (one-tenth-pi).
> > What went wrong ???
> > --
> > Thanks,
> > Frank Bemelman
> > (remove 'x' & .invalid when sending email)
> If r is the length of a side of the square, and consequently the radius
> of the quarter circles inscribed within and centered on each corner,
> then I get for the area of the cushion:
> So if r=1 then A=1-sqrt(3)+pi/3=0.315147
> What's the deal with subtracting pi/10?
I get the same result.
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