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
1851	Find the center and radius of the circle $ (x+4)^2+(y+2)^2=19 $.	2
1852	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( -1 , -3 \right)} $ passing throught the point $ \color{blue}{ P = \left( -4 , -6 \right) } $.	2
1853	Find the center and radius of the circle $ (x-4)^2+(y+6)^2=16 $.	2
1854	Find the center and radius of the circle $ (x-4)^2+(y+6)^2=6 $.	2
1855	Find the center and radius of the circle $ (x-4)^2+(y+6)^2=8 $.	2
1856	Find the center and radius of the circle $ (x-4)^2+(y+6)^2=9 $.	2
1857	Find the center and radius of the circle $ (x+5)^2+(y-2)^2=9 $.	2
1858	Find the center and radius of the circle $ (x+4)^2+(y-4)^2=10 $.	2
1859	Find the center and radius of the circle $ (x+4)^2+(y-4)^2=15 $.	2
1860	Find the center and radius of the circle $ (x+4)^2+(y-4)^2=14 $.	2
1861	Find the center and radius of the circle $ (x+4)^2+(y-4)^2=12 $.	2
1862	Find the center and radius of the circle $ (x+4)^2+(y-4)^2=13 $.	2
1863	Find the center and radius of the circle $ (x+5)^2+(y-7)^2=289 $.	2
1864	Find the center and radius of the circle $ (x-2)^2+(y-7)^2=4 $.	2
1865	Find General 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
1866	Find the center and radius of the circle $ (x+14)^2+(y+12)^2=361 $.	2
1867	Find the center and radius of the circle $ (x+9)^2+(y+6)^2=1 $.	2
1868	Find the center and radius of the circle $ x^2+(y+2)^2=4 $.	2
1869	Find the center and radius of the circle $ (x+7)^2+(y+2)^2=4 $.	2
1870	Find the center and radius of the circle $ x^2+y^2 + 8 x -4 y -8 = 0 $.	2
1871	Find the center and radius of the circle $ x^2+y^2 -2 x -12 y + 0 = 0 $.	2
1872	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( 3 , 0 \right)} $ and radius $ \color{blue}{ 3 }$	2
1873	Find the center and radius of the circle $ (x+15)^2+(y+13)^2=400 $.	2
1874	Find the center and radius of the circle $ x^2+y^2 + 16 x -16 y -79 = 0 $.	2
1875	Find the center and radius of the circle $ x^2+(y+7)^2=16 $.	2
1876	Find the center and radius of the circle $ x^2+y^2 + 16 x -16 y + 79 = 0 $.	2
1877	Find the center and radius of the circle $ x^2+y^2 -2 x -4 y -4 = 0 $.	2
1878	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( 5 , -4 \right)} $ and radius $ \color{blue}{ 4 }$	2
1879	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( -10 , 0 \right)} $ and radius $ \color{blue}{ 2 }$	2
1880	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 3 \right)} $ and radius $ \color{blue}{ 6 }$	2
1881	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( -9 , 1 \right)} $ and radius $ \color{blue}{ 10 }$	2
1882	Find the center and radius of the circle $ (x+9)^2+(y-3)^2=121 $.	2
1883	Find the center and radius of the circle $ x^2+y^2 -100 x + 9 y + 0 = 0 $.	2
1884	Find the center and radius of the circle $ x^2+y^2 -100 x + 9 y -1 = 0 $.	2
1885	Find the center and radius of the circle $ (x+\frac{1}{2})^2+(y-\frac{3}{4})^2=64 $.	2
1886	Find the center and radius of the circle $ (x-\frac{1}{6})^2+(y+2)^2=121 $.	2
1887	Find the center and radius of the circle $ (x+\frac{1}{6})^2+y^2=121 $.	2
1888	Find Standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 4 \right)} $ and radius $ \color{blue}{ 3 }$	2
1889	Find the center and radius of the circle $ (x-3)^2+(y+3)^2=9 $.	2
1890	Find the center and radius of the circle $ x^2+y^2 -3 x -3 y + \frac{ 9 }{ 4 } = 0 $.	2
1891	Find the center and radius of the circle $ x^2+y^2 + 4 x -10 y -7 = 0 $.	2
1892	Find the center and radius of the circle $ (x-7)^2+(y+1)^2=144 $.	2
1893	Find the center and radius of the circle $ (x+3)^2+(y+11)^2=196 $.	2
1894	Find the center and radius of the circle $ x^2+y^2 -4 x -2 y + 0 = 0 $.	2
1895	Find the center and radius of the circle $ x^2+(y-4)^2=300 $.	2
1896	Find the center and radius of the circle $ x^2+y^2 + 14 x -4 y + 44 = 0 $.	2
1897	Find the center and radius of the circle $ x^2+y^2 + 0 x + 4 y -45 = 0 $.	2
1898	Find the center and radius of the circle $ (x+4)^2+(y+1)^2=16 $.	2
1899	Find the center and radius of the circle $ x^2+y^2 -10 x + 4 y -35 = 0 $.	2
1900	Find the center and radius of the circle $ x^2+y^2 -2 x -4 y -6 = 0 $.	2