Circle equation
(the database of solved problems)
All the problems and solutions shown below were generated using the Circle equation Calculator.
| ID |
Problem |
Count |
| 201 | Find the center and radius of the circle $ (x-8)^2+y^2=144 $. | 11 |
| 202 | Find the center and radius of the circle $ (x+3)^2+(y-10)^2=49 $. | 11 |
| 203 | Find the center and radius of the circle $ x^2 + y^2 = 5 $. | 11 |
| 204 | Find the center and radius of the circle $ x^2 + y^2 + 14 x -12 y + 4 = 0 $. | 11 |
| 205 | Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 2 \right)^2 = 25 $. | 11 |
| 206 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -3 \right)} $ passing throught the point $ \color{blue}{ P = \left( -1 , -8 \right) } $. | 11 |
| 207 | Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 4 \right)^2 = 25 $. | 11 |
| 208 | Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y + 10 \right)^2 = 10 $. | 11 |
| 209 | Find the center and radius of the circle $ x^2 + y^2 + 8 x + 8 y + 7 = 0 $. | 11 |
| 210 | Find Standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , -7 \right)} $ and radius $ \color{blue}{ 9 }$ | 10 |
| 211 | Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 4 \right)^2 = 4 $. | 10 |
| 212 | Find the center and radius of the circle $ x^2 + y^2 -2 x -16 y + 40 = 0 $. | 10 |
| 213 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 0 , 0 \right)} $ and radius $ \color{blue}{ 9 }$ | 10 |
| 214 | Find the center and radius of the circle $ x^2 + y^2 + 2 x + 2 y -2 = 0 $. | 10 |
| 215 | Find the center and radius of the circle $ x^2 + y^2 +x +y -\frac{ 199 }{ 2 } = 0 $. | 10 |
| 216 | Find the center and radius of the circle $ x^2 + y^2 -4 x -8 y + 16 = 0 $. | 10 |
| 217 | Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y + 2 \right)^2 = 7 $. | 10 |
| 218 | Find the center and radius of the circle $ x^2 + y^2 + 14 x -8 y + 56 = 0 $. | 10 |
| 219 | Find the center and radius of the circle $ x^2 + y^2 -6 x + 8 y + 9 = 0 $. | 10 |
| 220 | Find general equation of a circle with a center at $ \color{blue}{C = \left( -9 , -1 \right)} $ and radius $ \color{blue}{ 4 }$ | 10 |
| 221 | Find the center and radius of the circle $ \left(x - 2 \right)^2 + \left( y - 1 \right)^2 = 25 $. | 10 |
| 222 | Find the center and radius of the circle $ \left(x - 2 \right)^2 + \left( y + 1 \right)^2 = 16 $. | 10 |
| 223 | Find the center and radius of the circle $ x^2 + y^2 -4 x + 6 y -12 = 0 $. | 10 |
| 224 | Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y + 8 \right)^2 = 80 $. | 10 |
| 225 | Find the center and radius of the circle $ \left(x - 6 \right)^2 + \left( y - 7 \right)^2 = 20 $. | 10 |
| 226 | Find the center and radius of the circle $ x^2 + y^2 -12 x -12 y -28 = 0 $. | 10 |
| 227 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , 0 \right)} $ and radius $ \color{blue}{ 1 }$ | 10 |
| 228 | Find the center and radius of the circle $ x^2 + y^2 -3 x + 4 y -\frac{ 11 }{ 4 } = 0 $. | 9 |
| 229 | Find the center and radius of the circle $ x^2 + y^2 + 6 x -2 y + 6 = 0 $. | 9 |
| 230 | Find the center and radius of the circle $ x^2 + y^2 = 0 $. | 9 |
| 231 | Find the center and radius of the circle $ x^2 + \left( y - 4 \right)^2 = 49 $. | 9 |
| 232 | Find the center and radius of the circle $ x^2 + y^2 + 10 x -8 y + 32 = 0 $. | 9 |
| 233 | Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y - 1 \right)^2 = 25 $. | 9 |
| 234 | 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) } $. | 9 |
| 235 | Find general equation of a circle with a center at $ \color{blue}{C = \left( -4 , 9 \right)} $ and radius $ \color{blue}{ 7 }$ | 9 |
| 236 | Find the center and radius of the circle $ x^2 + y^2 + 5 x -7 y + 15.4375 = 0 $. | 9 |
| 237 | Find the center and radius of the circle $ x^2 + y^2 + 4 x -2 y -20 = 0 $. | 9 |
| 238 | Find the center and radius of the circle $ x^2 + y^2 + 8 x -2 y -64 = 0 $. | 9 |
| 239 | Find the center and radius of the circle $ \left(x - 2 \right)^2 + \left( y + 4 \right)^2 = 9 $. | 9 |
| 240 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 2 , -1 \right)} $ and radius $ \color{blue}{ 4 }$ | 9 |
| 241 | Find General equation of a circle with a center at $ \color{blue}{C = \left( 2 , -2 \right)} $ and radius $ \color{blue}{ 8 }$ | 9 |
| 242 | Find the center and radius of the circle $ x^2+y^2 -6 x + 6 y -18 = 0 $. | 9 |
| 243 | Find the center and radius of the circle $ (x+6)^2+(y+1)^2=9 $. | 9 |
| 244 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( -4 , 9 \right)} $ and radius $ \color{blue}{ 7 }$ | 9 |
| 245 | Find the center and radius of the circle $ \left(x - 4 \right)^2 + \left( y - 1 \right)^2 = 4 $. | 9 |
| 246 | Find the center and radius of the circle $ \left( x + 4 \right)^2 + \left( y + 2 \right)^2 = 0 $. | 9 |
| 247 | Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 2 \right)^2 = 4 $. | 9 |
| 248 | Find the center and radius of the circle $ \left(x - 3 \right)^2 + \left( y + 4 \right)^2 = 25 $. | 9 |
| 249 | Find the center and radius of the circle $ x^2 + y^2 + 4 x + 6 y + 4 = 0 $. | 9 |
| 250 | Find the center and radius of the circle $ x^2 + y^2 + \frac{ 21 }{ 4 } x + 16 y + \frac{ 47 }{ 4 } = 0 $. | 9 |
