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OpenStudy (a1234):
How do I calculate the radius of a circle with (-3,4) for the center and which contains (2,2). I get √29, but I'm not sure.
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OpenStudy (freckles):
you use the distance form for the two points given
OpenStudy (freckles):
formula*
OpenStudy (freckles):
so what you have seems great
OpenStudy (cwrw238):
( x - a)^2 + (y - b)^2 = r^2 is the general form of the equation of a circle
OpenStudy (a1234):
Ok, I just seemed a bit confused because I was expecting to have problems with perfect square roots :(
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OpenStudy (freckles):
nope not all answers end up cute :p
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