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
2601	Find the center and radius of the circle $ \left( x + 2 \right)^2 + y^2 = 14 $.	2
2602	Find the center and radius of the circle $ x^2 + y^2 + 6 x -2 y -39 = 0 $.	2
2603	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y - 6 \right)^2 = 6 $.	2
2604	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 2 \right)^2 = 75 $.	2
2605	Find the center and radius of the circle $ x^2 + y^2 -8 x -14 y + 40 = 0 $.	2
2606	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , -9 \right)} $ and radius $ \color{blue}{ \sqrt{ 2 } }$	2
2607	Find the center and radius of the circle $ \left(x - 1 \right)^2 + \left( y + 2 \right)^2 = 8 $.	2
2608	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 2 \right)} $ passing throught the point $ \color{blue}{ P = \left( 4 , 5 \right) } $.	2
2609	Find the center and radius of the circle $ \left(x - 1 \right)^2 + \left( y + 2 \right)^2 = 6 $.	2
2610	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 2 \right)^2 = 6 $.	2
2611	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y - 2 \right)^2 = 20 $.	2
2612	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -3 \right)} $ and radius $ \color{blue}{ 3 }$	2
2613	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , 1 \right)} $ and radius $ \color{blue}{ 4 \sqrt{ 5 } }$	2
2614	Find the center and radius of the circle $ x^2 + y^2 + \frac{ 1 }{ 2 } x + 2 y + \frac{ 1 }{ 4 } = 0 $.	2
2615	Find the center and radius of the circle $ x^2 + y^2 -8 x + 10 y + 41 = 0 $.	2
2616	Find the center and radius of the circle $ x^2 + y^2 + 6 x -y -2 = 0 $.	2
2617	Find the center and radius of the circle $ \left( x + \frac{ 1 }{ 2 } \right)^2 + \left( y + 1 \right)^2 = \sqrt{ 7 } $.	2
2618		2
2619		2
2620	Find the center and radius of the circle $ x^2 + \left( y + 4 \right)^2 = 3 $.	2
2621	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 1 \right)^2 = 121 $.	2
2622	Find the center and radius of the circle $ \left( x + 5 \right)^2 + \left( y + 5 \right)^2 = 98 $.	2
2623	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y - 5 \right)^2 = 4 $.	2
2624	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 9 , 9 \right)} $ and radius $ \color{blue}{ \frac{ 5 }{ 3 } }$	2
2625	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -8 , 10 \right)} $ passing throught the point $ \color{blue}{ P = \left( -12 , 3 \right) } $.	2
2626	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( 5 , -6 \right) } $.	2
2627	Find the center and radius of the circle $ x^2 + y^2 -8 x + 4 y -61 = 0 $.	2
2628		2
2629	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y - 1 \right)^2 = 2 $.	2
2630	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 1 \right)} $ and radius $ \color{blue}{ 3 }$	2
2631	Find the center and radius of the circle $ x^2 + \left( y - \frac{ 9 }{ 10 } \right)^2 = \frac{ 81 }{ 100 } $.	2
2632	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( 4 , 7 \right) } $.	2
2633	Find the center and radius of the circle $ x^2 + y^2 -4 x -2 y -20 = 0 $.	2
2634	Find the center and radius of the circle $ \left(x - 1 \right)^2 + \left( y + 3 \right)^2 = 15 $.	2
2635	Find the center and radius of the circle $ x^2 + y^2 + 4 x -10 y -21 = 0 $.	2
2636	Find the center and radius of the circle $ \left( x + 8 \right)^2 + \left( y + 16 \right)^2 = 9 $.	2
2637	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 7 , 0 \right)} $ and radius $ \color{blue}{ 5 }$	2
2638	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , -3 \right)} $ and radius $ \color{blue}{ 3 }$	2
2639	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , -1 \right)} $ and radius $ \color{blue}{ \sqrt{ 3 } }$	2
2640	Find the center and radius of the circle $ \left(x - 8 \right)^2 + \left( y + \frac{ 7 }{ 6 } \right)^2 = \frac{ 36 }{ 25 } $.	2
2641	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 10 , 11 \right)} $ and radius $ \color{blue}{ 13 }$	2
2642	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -7 , 7 \right)} $ passing throught the point $ \color{blue}{ P = \left( -11 , -1 \right) } $.	2
2643	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , 6 \right)} $ and radius $ \color{blue}{ 5 }$	2
2644	Find the center and radius of the circle $ x^2 + y^2 -14 x -8 y + 61 = 0 $.	2
2645	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -1 , -\frac{ 2 }{ 3 } \right)} $ and radius $ \color{blue}{ \sqrt{ 11 } }$	2
2646	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -7 , -10 \right)} $ passing throught the point $ \color{blue}{ P = \left( 8 , -7 \right) } $.	2
2647	Find the center and radius of the circle $ x^2 + y^2 -2 x -8 y + 13 = 0 $.	2
2648	Find the center and radius of the circle $ \left(x - \frac{ 1 }{ 2 } \right)^2 + \left( y + 1 \right)^2 = \frac{ 25 }{ 16 } $.	2
2649	Find the center and radius of the circle $ \left(x - 1 \right)^2 + \left( y + 1 \right)^2 = \frac{ 25 }{ 16 } $.	2
2650	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y + 5 \right)^2 = 9 $.	2