Subject:
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Re: Math problem, please help!
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Newsgroups:
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lugnet.cad
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Date:
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Mon, 4 Nov 2002 00:48:03 GMT
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Viewed:
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403 times
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In lugnet.cad, Tore Eriksson writes:
> I have a circle with unknown radius.
>
> Origo is at x=-310, y=unknown.
> One known point is x=-310, y=-50, that's the top value of y.
> The other known point is at x=-30.37, y=-120.11
>
> I want to know the radius of the circle. It could be somewhere between 400
> and 700 units. Anybody?
Easy using pythagoras:
r^2 = (r-70.11)^2 + (279.63)^2
a little manipulation yields r = 592.70 sound about right?
ROSCO
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Message has 1 Reply:
 | | Re: Math problem, please help!
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| (...) Sounds about exactly correct. Sometimes when I stare long enough into a problem, I just keep trying the same wrong way. :o/ Thanks Rosco! I should be able to calculate the next radius myself. /Tore (22 years ago, 4-Nov-02, to lugnet.cad)
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Message is in Reply To:
| | Math problem, please help!
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| I have a circle with unknown radius. Origo is at x=-310, y=unknown. One known point is x=-310, y=-50, that's the top value of y. The other known point is at x=-30.37, y=-120.11 I want to know the radius of the circle. It could be somewhere between (...) (22 years ago, 4-Nov-02, to lugnet.cad)
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