Subject:
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Re: Geometry problem
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Sat, 19 Jun 1999 00:56:15 GMT
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Viewed:
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168 times
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Kevin B wrote in message ...
>
> Steve Bliss <blisses@worldnet.att.net> wrote in message
> news:376526fe.11799230@lugnet.com...
> > On Mon, 14 Jun 1999 14:41:54 GMT, Fredrik Glöckner
> > <fredrik.glockner@bio.uio.no> wrote:
> >
> > > I admit that this puzzles me, but then again, it's the end of the
> > > working day.
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> > > http://quimby.gnus.org/circus/problem.gif
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> > > Fredrik
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> > [Spoiler space added]
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> > Hmm, haven't checked all figures, but the two triangles are not similar
> > (same shape): the green triangle has a slope of 2/5, the red triangle is
> > 3/8. So the two aggregate figures (which appear to be triangles, but are
> > really quadrilateralts) are not the same shape/size.
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> > Steve
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> Bingo. That is the answer to the problem. I had one similar to this in a
> gometry class once. It is a sort of optical illusion. The angles are
> close, but they are not the same. If you drew a line from upper right tip
> to lower left tip, you would get a triangle with an area of 1 square.
Cool problem. I am actually visually able to see the fact that the
"hypotenuse" of the combined area is not straight. I see the top hypotenuse
as concave, and the lower as convex. It sometimes amazes me at the
capability of the mind to process visual effects.
Frank
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Message is in Reply To:
 | | Re: Geometry problem
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| Steve Bliss <blisses@worldnet.att.net> wrote in message news:376526fe.117992...net.com... (...) Bingo. That is the answer to the problem. I had one similar to this in a gometry class once. It is a sort of optical illusion. The angles are close, but (...) (25 years ago, 16-Jun-99, to lugnet.off-topic.geek)
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