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
2801	Find the center and radius of the circle $ \left(x - 12 \right)^2 + \left( y - 4 \right)^2 = 30 $.	2
2802	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , 4 \right)} $ and radius $ \color{blue}{ 3 }$	2
2803	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , 0 \right)} $ and radius $ \color{blue}{ 7 }$	2
2804	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 3 \right)} $ and radius $ \color{blue}{ 3 }$	2
2805	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , -4 \right)} $ and radius $ \color{blue}{ 7 }$	2
2806	Find the center and radius of the circle $ \left( x + 4 \right)^2 + \left( y + 3 \right)^2 = 0 $.	2
2807	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 25 , 25 \right)} $ passing throught the point $ \color{blue}{ P = \left( \frac{ 631 }{ 20 } , \frac{ 37 }{ 10 } \right) } $.	2
2808	Find the center and radius of the circle $ x^2 + \left( y + 3 \right)^2 = 9 $.	2
2809	Find the center and radius of the circle $ x^2 + y^2 + 16 x -16 y + 124 = 0 $.	2
2810	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -7 , 6 \right)} $ and radius $ \color{blue}{ 5 }$	2
2811	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 3 , 4 \right)} $ and radius $ \color{blue}{ 5 }$	2
2812	Find the center and radius of the circle $ \left(x - 11 \right)^2 + \left( y - 6 \right)^2 = 125 $.	2
2813	Find the center and radius of the circle $ \left(x - 11 \right)^2 + \left( y + 6 \right)^2 = \frac{ 56 }{ 5 } $.	2
2814	Find the center and radius of the circle $ \left(x - 11 \right)^2 + \left( y - 2 \right)^2 = 125 $.	2
2815	Find the center and radius of the circle $ \left(x - 11 \right)^2 + \left( y - 2 \right)^2 = \frac{ 56 }{ 5 } $.	2
2816	Find standard equation of a circle with a center at $ \color{blue}{C = \left( \frac{ 3 }{ 2 } , -2 \right)} $ passing throught the point $ \color{blue}{ P = \left( 0 , 0 \right) } $.	2
2817	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 1 \right)^2 = 96 $.	2
2818	Find the center and radius of the circle $ \left( x + \sqrt{ 5 } \right)^2 + \left( y - 7 \right)^2 = 1 $.	2
2819	Find the center and radius of the circle $ x^2 + y^2 -6 x + 8 y = 0 $.	2
2820	Find the center and radius of the circle $ x^2 + y^2 + 16 x + 30 y + 282 = 0 $.	2
2821	Find the center and radius of the circle $ \left( x + 10 \right)^2 + \left( y + 11 \right)^2 = 9 $.	2
2822	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -\frac{ 15 }{ 2 } , 8 \right)} $ and radius $ \color{blue}{ \frac{ 7 }{ 2 } }$	2
2823	Find the center and radius of the circle $ \left( x + 7 \right)^2 + \left( y + 5 \right)^2 = 1 $.	2
2824	Find general equation of a circle with a center at $ \color{blue}{C = \left( -\frac{ 15 }{ 2 } , 8 \right)} $ and radius $ \color{blue}{ \frac{ 7 }{ 2 } }$	2
2825	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y + 10 \right)^2 = 22 $.	2
2826	Find the center and radius of the circle $ \left(x - \frac{ 3 }{ 2 } \right)^2 + \left( y - \frac{ 5 }{ 2 } \right)^2 = 16 $.	2
2827	Find the center and radius of the circle $ x^2 + y^2 = \frac{ 59 }{ 10 } $.	2
2828	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 5 , 0 \right)} $ and radius $ \color{blue}{ 6 }$	2
2829	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 2 \right)} $ and radius $ \color{blue}{ \sqrt{ 40 } }$	2
2830	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , -4 \right)} $ and radius $ \color{blue}{ 15 }$	2
2831	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 5 \right)} $ and radius $ \color{blue}{ \frac{ 7 }{ 2 } }$	2
2832	Find the center and radius of the circle $ x^2 + y^2 + 10 x + 4 y -7 = 0 $.	2
2833	Find the center and radius of the circle $ x^2 + \left( y - 5 \right)^2 = 4 $.	2
2834	Find the center and radius of the circle $ x^2 + y^2 -4 x + 10 y + 13 = 0 $.	2
2835	Find standard equation of a circle with a center at $ \color{blue}{C = \left( \frac{ 405 }{ 2 } , \frac{ 183 }{ 5 } \right)} $ and radius $ \color{blue}{ 104.1399 }$	2
2836	Find the center and radius of the circle $ \left( x + \frac{ 187 }{ 100 } \right)^2 + \left( y + \frac{ 81 }{ 25 } \right)^2 = \frac{ 13 }{ 100 } $.	2
2837	Find the center and radius of the circle $ \left(x - \frac{ 405 }{ 2 } \right)^2 + \left( y + \frac{ 1841 }{ 100 } \right)^2 = \frac{ 118448421 }{ 10000 } $.	2
2838	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -200 , 0 \right)} $ passing throught the point $ \color{blue}{ P = \left( 105 , 0 \right) } $.	2
2839	Find the center and radius of the circle $ x^2 + y^2 -26 x + 34 y + 410 = 0 $.	2
2840	Find the center and radius of the circle $ \left( x + 5 \right)^2 + \left( y + 2 \right)^2 = 40 $.	2
2841	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y + 6 \right)^2 = 9 $.	2
2842	Find the center and radius of the circle $ x^2 + y^2 -29 = 0 $.	2
2843	Find the center and radius of the circle $ \left(x - 3 \right)^2 + \left( y - 9 \right)^2 = 0 $.	2
2844	Find the center and radius of the circle $ x^2 + y^2 + 16 = 0 $.	2
2845	Find the center and radius of the circle $ \left(x - 2 \right)^2 + \left( y - 1 \right)^2 = 13 $.	2
2846	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 1 \right)} $ and radius $ \color{blue}{ 0 }$	2
2847	Find the center and radius of the circle $ x^2 + y^2 -2 x -4 y + 4 = 0 $.	2
2848	Find standard equation of a circle with a center at $ \color{blue}{C = \left( \frac{ 157549439 }{ 50000 } , 5 \right)} $ and radius $ \color{blue}{ 3 }$	2
2849	Find general equation of a circle with a center at $ \color{blue}{C = \left( \frac{ 157549439 }{ 50000 } , 5 \right)} $ and radius $ \color{blue}{ 3 }$	2
2850	Find general equation of a circle with a center at $ \color{blue}{C = \left( 1578 , -9 \right)} $ and radius $ \color{blue}{ 1576 }$	2