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
1751	Find the center and radius of the circle $ x^2 + y^2 + 12 x + 4 y = 0 $.	2
1752	Find the center and radius of the circle $ x^2 + y^2 + 12 x + 4 y + 36 = 0 $.	2
1753	Find the center and radius of the circle $ x^2 + y^2 + 12 x + 4 y + 36 = 0 $.	2
1754	Find the center and radius of the circle $ x^2 + y^2 + 12 x + 4 y + 36 = 0 $.	2
1755		2
1756	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 8 , -1 \right)} $ and radius $ \color{blue}{ 0 }$	2
1757	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 8 , -1 \right)} $ and radius $ \color{blue}{ 5 }$	2
1758		2
1759		2
1760		2
1761	Find the center and radius of the circle $ x^2 + y^2 + 12 x + 8 y -48 = 0 $.	2
1762	Find the center and radius of the circle $ x^2 + y^2 + 20 x -16 y + 128 = 0 $.	2
1763	Find the center and radius of the circle $ \left( x + 7 \right)^2 + \left( y - 6 \right)^2 = 4 $.	2
1764	Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y - 2 \right)^2 = 4 $.	2
1765	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y + 6 \right)^2 = 1 $.	2
1766	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 7 , 2 \right)} $ passing throught the point $ \color{blue}{ P = \left( 7 , 0 \right) } $.	2
1767	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 11 , -6 \right)} $ and radius $ \color{blue}{ 16 }$	2
1768	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , -2 \right)} $ and radius $ \color{blue}{ 2 }$	2
1769	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 17 , -7 \right)} $ and radius $ \color{blue}{ 0 }$	2
1770	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , 5 \right)} $ and radius $ \color{blue}{ \sqrt{ 10 } }$	2
1771	Find the center and radius of the circle $ \left(x - 1 \right)^2 + \left( y - 7 \right)^2 = 1 $.	2
1772	Find the center and radius of the circle $ \left( x + 8 \right)^2 + \left( y + 1 \right)^2 = 1 $.	2
1773	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y + 1 \right)^2 = 4 $.	2
1774	Find the center and radius of the circle $ \left( x + 5 \right)^2 + \left( y - 4 \right)^2 = 4 $.	2
1775	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y - 8 \right)^2 = 4 $.	2
1776	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , -6 \right)} $ and radius $ \color{blue}{ \sqrt{ 2 } }$	2
1777	Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y - 7 \right)^2 = 81 $.	2
1778	Find the center and radius of the circle $ x^2 + y^2 -10 x -14 y -7 = 0 $.	2
1779	Find the center and radius of the circle $ \left( x + 6 \right)^2 + \left( y + 8 \right)^2 = 100 $.	2
1780	Find the center and radius of the circle $ x^2 + y^2 + 12 x -12 y + 36 = 0 $.	2
1781	Find the center and radius of the circle $ x^2 + y^2 -10 x -12 y = 0 $.	2
1782	Find the center and radius of the circle $ \left(x - 7 \right)^2 + \left( y - 9 \right)^2 = 0 $.	2
1783	Find the center and radius of the circle $ x^2 + y^2 + 8 x + 15 y = 0 $.	2
1784	Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 5 \right)^2 = 9 $.	2
1785	Find the center and radius of the circle $ \left(x - 3 \right)^2 + \left( y + 1 \right)^2 = 9 $.	2
1786	Find the center and radius of the circle $ x^2 + y^2 + 10 x -9 y -39 = 0 $.	2
1787	Find the center and radius of the circle $ x^2 + y^2 -9 x + 14 = 0 $.	2
1788	Find the center and radius of the circle $ x^2 + y^2 + 13 y + 36 = 0 $.	2
1789	Find the center and radius of the circle $ x^2 + y^2 + 9 x = 0 $.	2
1790	Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y - 1 \right)^2 = 36 $.	2
1791	Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y + 4 \right)^2 = 121 $.	2
1792	Find the center and radius of the circle $ \left( x + 3 \right)^2 + y^2 = 25 $.	2
1793	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -1 , 2 \right)} $ passing throught the point $ \color{blue}{ P = \left( 1 , 2 \right) } $.	2
1794	Find the center and radius of the circle $ x^2 + y^2 -12 x + 8 y -48 = 0 $.	2
1795	Find the center and radius of the circle $ x^2 + y^2 + 4 x + 20 y + 23 = 0 $.	2
1796	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , 3 \right)} $ and radius $ \color{blue}{ \sqrt{ 1000 } }$	2
1797	Find general equation of a circle with a center at $ \color{blue}{C = \left( 3 , -9 \right)} $ and radius $ \color{blue}{ 6 }$	2
1798	Find the center and radius of the circle $ x^2 + y^2 + 2 x -3 y -\frac{ 100 }{ 3 } = 0 $.	2
1799	Find general equation of a circle with a center at $ \color{blue}{C = \left( -11 , 0 \right)} $ and radius $ \color{blue}{ 2 }$	2
1800	Find general equation of a circle with a center at $ \color{blue}{C = \left( 4 , -10 \right)} $ and radius $ \color{blue}{ 2 }$	2