Question 1175258
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Hi
Standard Form of an Equation of a Circle is: 
{{{(x-h)^2 + (y-k)^2 = r^2}}} 
Center(h,k) and r  the radius

1. {{{(x-1)^2 + (y+4)^2 = 5^2}}} 

2. {{{(x+3)^2 + (y+3)^2 = 2^2}}} 

3.  {{{x^2 + y^2 = 34^2}}} 

Wish You the Best in your Studies.
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