Circle equation

(the database of solved problems)

All the problems and solutions shown below were generated using the Circle equation Calculator.

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ID	Problem	Count
2901		2
2902	Find the center and radius of the circle $ x^2 + y^2 -6 x -4 y + 12 = 0 $.	2
2903		2
2904	Find the center and radius of the circle $ x^2 + y^2 + 2 x -8 = 0 $.	2
2905	Find the center and radius of the circle $ x^2 + y^2 = 9 $.	2
2906		2
2907	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y - 4 \right)^2 = 4 $.	2
2908	Find the center and radius of the circle $ x^2 + y^2 + 4 x -8 y + 15 = 0 $.	2
2909	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 8 \right)} $ passing throught the point $ \color{blue}{ P = \left( 0 , 9 \right) } $.	2
2910	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 507 , 85 \right)} $ and radius $ \color{blue}{ \frac{ 845 }{ 4 } }$	2
2911	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 5 , -3 \right)} $ and radius $ \color{blue}{ 4 }$	2
2912	Find general equation of a circle with a center at $ \color{blue}{C = \left( 507 , 85 \right)} $ and radius $ \color{blue}{ \frac{ 845 }{ 4 } }$	2
2913	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , 5 \right)} $ and radius $ \color{blue}{ 5 }$	2
2914	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 0 \right)} $ passing throught the point $ \color{blue}{ P = \left( 5 , 7 \sqrt{ 2 } \right) } $.	2
2915	Find general equation of a circle with a center at $ \color{blue}{C = \left( 507 , -\frac{ 505 }{ 4 } \right)} $ and radius $ \color{blue}{ \frac{ 845 }{ 4 } }$	2
2916	Find general equation of a circle with a center at $ \color{blue}{C = \left( 507 , -\frac{ 845 }{ 4 } \right)} $ and radius $ \color{blue}{ \frac{ 845 }{ 4 } }$	2
2917	Find general equation of a circle with a center at $ \color{blue}{C = \left( 100 , 5 \right)} $ and radius $ \color{blue}{ 60 }$	2
2918	Find the center and radius of the circle $ x^2 + y^2 + 10 x + 8 y + 37 = 0 $.	2
2919	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , -1 \right)} $ passing throught the point $ \color{blue}{ P = \left( -3 , 5 \right) } $.	2
2920	Find the center and radius of the circle $ \left( x + 2 \right)^2 + y^2 = 36 $.	2
2921	Find the center and radius of the circle $ \left(x - 10 \right)^2 + \left( y + 3 \right)^2 = 41 $.	2
2922	Find the center and radius of the circle $ \left(x - 3 \right)^2 + \left( y + 4 \right)^2 = 37 $.	2
2923	Find the center and radius of the circle $ x^2 + y^2 + 12 x + 16 y + \frac{ 10 }{ 3 } = 0 $.	2
2924	Find the center and radius of the circle $ \left(x - 9 \right)^2 + \left( y + 8 \right)^2 = 1 $.	2
2925	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , \frac{ 1 }{ 2 } \right)} $ passing throught the point $ \color{blue}{ P = \left( 4 , 3 \right) } $.	2
2926	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 6 , -9 \right)} $ and radius $ \color{blue}{ 3 }$	2
2927	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -6 , 9 \right)} $ and radius $ \color{blue}{ 3 }$	2
2928	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , -4 \right)} $ passing throught the point $ \color{blue}{ P = \left( 2 , 0 \right) } $.	2
2929	Find the center and radius of the circle $ x^2 + \left( y - 12 \right)^2 = 36 $.	2
2930	Find the center and radius of the circle $ x^2 + y^2 -8 x + 6 y -11 = 0 $.	2
2931	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , 6 \right)} $ passing throught the point $ \color{blue}{ P = \left( 7 , 7 \right) } $.	2
2932	Find the center and radius of the circle $ \left( x + 4 \right)^2 + \left( y - 2 \right)^2 = 225 $.	2
2933	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 3 , 5 \right)} $ and radius $ \color{blue}{ 16 }$	2
2934	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -8 , 3 \right)} $ and radius $ \color{blue}{ 8 }$	2
2935	Find the center and radius of the circle $ x^2 + y^2 + 6 x -4 y -14 = 0 $.	2
2936	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , -5 \right)} $ passing throught the point $ \color{blue}{ P = \left( 2 , -4 \right) } $.	2
2937	Find the center and radius of the circle $ x^2 + y^2 -12 x + 8 y + 7 = 0 $.	2
2938	Find the center and radius of the circle $ \left( x + 4 \right)^2 + y^2 = 25 $.	2
2939	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y + 13 \right)^2 = 16 $.	2
2940	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , 3 \right)} $ and radius $ \color{blue}{ 1 }$	2
2941	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 7 , 0 \right)} $ and radius $ \color{blue}{ 9 }$	2
2942	Find the center and radius of the circle $ \left(x - 3 \right)^2 + y^2 = 16 $.	2
2943	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , -6 \right)} $ passing throught the point $ \color{blue}{ P = \left( -1 , 2 \right) } $.	2
2944	Find the center and radius of the circle $ \left( x + 7 \right)^2 + \left( y + 5 \right)^2 = 0 $.	2
2945	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 2 \right)^2 = 4 $.	2
2946	Find the center and radius of the circle $ x^2 + y^2 + 14 x + 4 y + 47 = 0 $.	2
2947	Find the center and radius of the circle $ x^2 + y^2 -8 x -6 y + 16 = 0 $.	2
2948	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 7 \right)} $ passing throught the point $ \color{blue}{ P = \left( -9 , -5 \right) } $.	2
2949	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -1 , 8 \right)} $ and radius $ \color{blue}{ 6 }$	2
2950	Find general equation of a circle with a center at $ \color{blue}{C = \left( -\frac{ 16 }{ 5 } , 2 \right)} $ and radius $ \color{blue}{ \frac{ 43 }{ 10 } }$	2