SOLUTION: Give the center and radius of the circle described by (x-1)^2+(y-2)=4

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Question 671798: Give the center and radius of the circle described by (x-1)^2+(y-2)=4
Found 2 solutions by ewatrrr, MathLover1:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Standard Form of an Equation of a Circle is %28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2 

where Pt(h,k) is the center and r is the radius

%28x-1%29%5E2%2B%28y-2%29%5E2=4   C(1,2) and r = 2

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2...where (h.k) coordinates of the center and r is the radius
so, you have %28x-1%29%5E2%2B%28y-2%29=4 which means your (h.k)=(1.2) and r=2