Circle equation

(the database of solved problems)

All the problems and solutions shown below were generated using the Circle equation Calculator.

Select category

ID	Problem	Count
2351	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y + 1 \right)^2 = 196 $.	2
2352	Find the center and radius of the circle $ \left(x - 8 \right)^2 + \left( y - 2 \right)^2 = 324 $.	2
2353	Find the center and radius of the circle $ x^2 + y^2 -4 x -14 y -28 = 0 $.	2
2354	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -3 \right)} $ and radius $ \color{blue}{ 7 }$	2
2355	Find the center and radius of the circle $ \left( x + 4 \right)^2 + y^2 = 3 $.	2
2356	Find the center and radius of the circle $ \left( x + 5 \right)^2 + y^2 = 225 $.	2
2357	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 4 , 9 \right)} $ and radius $ \color{blue}{ \frac{ 2 }{ 3 } }$	2
2358	Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y + 3 \right)^2 = 70 $.	2
2359	Find the center and radius of the circle $ \left(x - 6 \right)^2 + \left( y + 2 \right)^2 = 35 $.	2
2360	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -1 \right)} $ passing throught the point $ \color{blue}{ P = \left( 2 , -2 \right) } $.	2
2361	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 8 , 1 \right)} $ passing throught the point $ \color{blue}{ P = \left( 4 , -4 \right) } $.	2
2362	Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y - 1 \right)^2 = 5 $.	2
2363	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -7 , 2 \right)} $ and radius $ \color{blue}{ 3 }$	2
2364	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 10 , -3 \right)} $ and radius $ \color{blue}{ 4 }$	2
2365	Find the center and radius of the circle $ \left( x + 3 \right)^2 + y^2 = 2 $.	2
2366	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , -1 \right)} $ and radius $ \color{blue}{ 4 }$	2
2367		2
2368	Find the center and radius of the circle $ \left( x + 5 \right)^2 + \left( y + 6 \right)^2 = 121 $.	2
2369	Find the center and radius of the circle $ \left( x + 6 \right)^2 + \left( y + 6 \right)^2 = 100 $.	2
2370	Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y + 9 \right)^2 = \sqrt{ 2 } $.	2
2371		2
2372		2
2373	Find standard equation of a circle with a center at $ \color{blue}{C = \left( -6 , 5 \right)} $ and radius $ \color{blue}{ 9 }$	2
2374	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -7 \right)} $ and radius $ \color{blue}{ \sqrt{ 2 } }$	2
2375	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -8 \right)} $ and radius $ \color{blue}{ 7 }$	2
2376	Find the center and radius of the circle $ \left( x + 5 \right)^2 + \left( y + 2 \right)^2 = 0 $.	2
2377	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , -3 \right)} $ and radius $ \color{blue}{ 5 }$	2
2378	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 9 , 0 \right)} $ passing throught the point $ \color{blue}{ P = \left( \sqrt{ 65 } , 12 \right) } $.	2
2379	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 0 \right)} $ and radius $ \color{blue}{ 34 }$	2
2380	Find the center and radius of the circle $ x^2 + y^2 + 8 x + 14 y +1 = 0 $.	2
2381	Find the center and radius of the circle $ \left( x + 4 \right)^2 + \left( y - 1 \right)^2 = 81 $.	2
2382	Find the center and radius of the circle $ \left(x - 8 \right)^2 + \left( y - 9 \right)^2 = 36 $.	2
2383	Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 5 \right)^2 = 81 $.	2
2384	Find the center and radius of the circle $ x^2 + y^2 + 4 x -10 y + 20 = 0 $.	2
2385	Find standard equation of a circle with a center at $ \color{blue}{C = \left( 5 , 10 \right)} $ and radius $ \color{blue}{ \frac{ 1 }{ 2 } }$	2
2386	Find the center and radius of the circle $ x^2 + y^2 -10 x + 12 y + 12 = 0 $.	2
2387		2
2388	Find general equation of a circle with a center at $ \color{blue}{C = \left( -3 , 2 \right)} $ passing throught the point $ \color{blue}{ P = \left( 4 , -6 \right) } $.	2
2389	Find the center and radius of the circle $ x^2 + y^2 + 6 x -2 y -29 = 0 $.	2
2390	Find the center and radius of the circle $ x^2 + y^2 -2 x -2 y -47 = 0 $.	2
2391	Find the center and radius of the circle $ x^2 + y^2 -8 x -4 y -14 = 0 $.	2
2392	Find the center and radius of the circle $ \left(x - 194 \right)^2 + \left( y - 185 \right)^2 = 17424 $.	2
2393	Find the center and radius of the circle $ x^2 + y^2 + 2 x + 6 y + 40 = 0 $.	2
2394	Find the center and radius of the circle $ x^2 + y^2 -6 x + 8 y = 0 $.	2
2395	Find the center and radius of the circle $ x^2 + y^2 -6 x + 8 y -25 = 0 $.	2
2396	Find the center and radius of the circle $ x^2 + y^2 -6 x + 8 y + 25 = 0 $.	2
2397	Find the center and radius of the circle $ x^2 + y^2 + 8 x -4 y -5 = 0 $.	2
2398	Find the center and radius of the circle $ x^2 + y^2 -6 x -7 = 0 $.	2
2399	Find the center and radius of the circle $ x^2 + y^2 -2 x -3 = 0 $.	2
2400	Find the center and radius of the circle $ x^2 + y^2 -2 x -4 y -11 = 0 $.	2