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Math Forum » Discussions » Math Topics » geometry.pre-college.independent

Topic: Intersection
Replies: 1   Last Post: Aug 9, 2006 1:22 AM

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Carlo Casini

Posts: 1
Registered: 8/8/06
Intersection
Posted: Aug 8, 2006 5:17 PM
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Hello,
I need help on solving this problem.
How do you find the intersection(s) of 2 circumferences knowing only the
center and the radius of each one?
I have look on several book and on the internet without any success.
The only way that come to my mind is to represent the circumferences with a
system of equation:
(x - a)^2 + (y - b)^2 = Rab^2
(x - c)^2 + (y - d)^2 = Rcd^2
where a,b,c and d are the coordinate of the centers and Rab and Rcd the
radiuses;
I think x and y values should be the coordinate of the intersection(s)
point(s).
Any help would be greatly appreciated.


Date Subject Author
8/8/06
Read Intersection
Carlo Casini
8/9/06
Read Re: Intersection
Rich Kleinschmidt

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