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
2651	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , 2 \right)} $ and radius $ \color{blue}{ 2 }$	2
2652	Find the center and radius of the circle $ \left( x + \frac{ 1 }{ 38 } \right)^2 + \left( y + \frac{ 7 }{ 38 } \right)^2 = \frac{ 6409 }{ 722 } $.	2
2653	Find the center and radius of the circle $ x^2 + y^2 + \frac{ 1 }{ 19 } x + \frac{ 7 }{ 19 } y -\frac{ 168 }{ 19 } = 0 $.	2
2654	Find the center and radius of the circle $ x^2 + y^2 -x +y -12 = 0 $.	2
2655	Find the center and radius of the circle $ x^2 + y^2 -\frac{ 61 }{ 5 } x + 15 y + 144 = 0 $.	2
2656	Find the center and radius of the circle $ x^2 + y^2 -\frac{ 61 }{ 5 } x + 3 y + \frac{ 144 }{ 5 } = 0 $.	2
2657	Find general equation of a circle with a center at $ \color{blue}{C = \left( -1 , -12 \right)} $ and radius $ \color{blue}{ 5 }$	2
2658	Find general equation of a circle with a center at $ \color{blue}{C = \left( 4 , -7 \right)} $ and radius $ \color{blue}{ 5 }$	2
2659	Find general equation of a circle with a center at $ \color{blue}{C = \left( 9 , -12 \right)} $ and radius $ \color{blue}{ 5 }$	2
2660	Find general equation of a circle with a center at $ \color{blue}{C = \left( 4 , -17 \right)} $ and radius $ \color{blue}{ 5 }$	2
2661	Find the center and radius of the circle $ \left(x - 7 \right)^2 + \left( y - 10 \right)^2 = 5 $.	2
2662	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( -7 , 4 \right) } $.	2
2663	Find the center and radius of the circle $ \left( x + 4 \right)^2 + \left( y + 3 \right)^2 = 9 $.	2
2664	Find the center and radius of the circle $ x^2 + y^2 + 11 x -13 y -41 = 0 $.	2
2665	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -9 , 8 \right)} $ passing throught the point $ \color{blue}{ P = \left( 0 , 0 \right) } $.	2
2666	Find the center and radius of the circle $ x^2 + y^2 -3 x + 4 y + 4 = 0 $.	2
2667	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y + 2 \right)^2 = 49 $.	2
2668	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , 3 \right)} $ passing throught the point $ \color{blue}{ P = \left( -\frac{ 4 }{ 5 } , \frac{ 23 }{ 5 } \right) } $.	2
2669	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -1 \right)} $ and radius $ \color{blue}{ 5 }$	2
2670	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( 3 , 1 \right) } $.	2
2671	Find the center and radius of the circle $ x^2 + \left( y + 9 \right)^2 = 0 $.	2
2672	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -6 , 3 \right)} $ and radius $ \color{blue}{ 9 }$	2
2673	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -4 , 5 \right)} $ and radius $ \color{blue}{ 2 }$	2
2674	Find general equation of a circle with a center at $ \color{blue}{C = \left( -4 , 5 \right)} $ and radius $ \color{blue}{ 2 }$	2
2675	Find the center and radius of the circle $ x^2 + y^2 -8 x -10 y + 359 = 0 $.	2
2676		2
2677	Find the center and radius of the circle $ \left( x + 7 \right)^2 + \left( y + 13 \right)^2 = 260 $.	2
2678	Find the center and radius of the circle $ \left(x - 2 \right)^2 + \left( y + 5 \right)^2 = 50 $.	2
2679	Find the center and radius of the circle $ x^2 + y^2 -8 x -12 y + 36 = 0 $.	2
2680	Find the center and radius of the circle $ \left( x + 4 \right)^2 + \left( y - 2 \right)^2 = 6 $.	2
2681	Find the center and radius of the circle $ x^2 + y^2 + 6 x -4 y + 23 = 0 $.	2
2682	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y - 1 \right)^2 = 49 $.	2
2683	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 3 \right)^2 = 25 $.	2
2684	Find the center and radius of the circle $ \left( x + 6 \right)^2 + \left( y + 6 \right)^2 = 4 $.	2
2685	Find the center and radius of the circle $ x^2 + y^2 + 6 x + 4 y -3 = 0 $.	2
2686	Find the center and radius of the circle $ x^2 + \left( y - 8 \right)^2 = 6 $.	2
2687	Find the center and radius of the circle $ x^2 + \left( y - 8 \right)^2 = 64 $.	2
2688	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , -3 \right)} $ passing throught the point $ \color{blue}{ P = \left( 4 , -4 \right) } $.	2
2689	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 6 \right)} $ passing throught the point $ \color{blue}{ P = \left( 4 , 2 \right) } $.	2
2690	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , -3 \right)} $ and radius $ \color{blue}{ 3 }$	2
2691	Find the center and radius of the circle $ x^2 + y^2 -18 x + 4 y + 60 = 0 $.	2
2692	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y - 3 \right)^2 = 16 $.	2
2693	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y + 2 \right)^2 = 35 $.	2
2694	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y - 5 \right)^2 = 15 $.	2
2695	Find the center and radius of the circle $ \left( x + 8 \right)^2 + \left( y + 9 \right)^2 = 54 $.	2
2696	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , 5 \right)} $ and radius $ \color{blue}{ 9 }$	2
2697	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 6 \right)^2 = 49 $.	2
2698	Find the center and radius of the circle $ x^2 + y^2 -4 x + 2 y + 8 = 0 $.	2
2699	Find the center and radius of the circle $ x^2 + y^2 -4 x + 2 y -8 = 0 $.	2
2700	Find the center and radius of the circle $ x^2 + y^2 + 6 x + \frac{ 9 }{ 2 } = 0 $.	2