Circle equation
(the database of solved problems)
All the problems and solutions shown below were generated using the Circle equation Calculator.
| ID |
Problem |
Count |
| 801 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( -2 , -3 \right)} $ and radius $ \color{blue}{ 2 }$ | 4 |
| 802 | Find the center and radius of the circle $ x^2 + y^2 -9 = 0 $. | 4 |
| 803 | Find the center and radius of the circle $ \left( x + 6 \right)^2 + \left( y - 1 \right)^2 = \frac{ 1 }{ 4 } $. | 4 |
| 804 | Find the center and radius of the circle $ \left(x - 3 \right)^2 + \left( y + 4 \right)^2 = 7 $. | 4 |
| 805 | Find the center and radius of the circle $ x^2 + \left( y - 306 \right)^2 = 306 $. | 4 |
| 806 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 10 , 7 \right)} $ and radius $ \color{blue}{ \frac{ 3 }{ 2 } }$ | 4 |
| 807 | Find the center and radius of the circle $ x^2 + y^2 -154 x -128 y + 224 = 0 $. | 4 |
| 808 | Find the center and radius of the circle $ \left(x - 6 \right)^2 + \left( y + 2 \right)^2 = 25 $. | 4 |
| 809 | Find the center and radius of the circle $ \left(x - 1 \right)^2 + \left( y + 4 \right)^2 = 36 $. | 4 |
| 810 | Find the center and radius of the circle $ \left(x - 10 \right)^2 + \left( y + 6 \right)^2 = 49 $. | 4 |
| 811 | Find the center and radius of the circle $ x^2 + y^2 = 8 $. | 4 |
| 812 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 2 \right)} $ and radius $ \color{blue}{ 40 }$ | 4 |
| 813 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 3 , 4 \right)} $ passing throught the point $ \color{blue}{ P = \left( 5 , 12 \right) } $. | 4 |
| 814 | | 4 |
| 815 | Find the center and radius of the circle $ x^2 + y^2 + 2 x + 10 y + 55 = 0 $. | 4 |
| 816 | Find the center and radius of the circle $ x^2 + y^2 + 2 x + 8 = 0 $. | 4 |
| 817 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 1 , 0 \right)} $ and radius $ \color{blue}{ 6 }$ | 4 |
| 818 | Find the center and radius of the circle $ \left( x + 1 \right)^2 + y^2 = 4 $. | 4 |
| 819 | Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y - 3 \right)^2 = 16 $. | 4 |
| 820 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( -3 , 4 \right)} $ and radius $ \color{blue}{ 2 }$ | 4 |
| 821 | Find general equation of a circle with a center at $ \color{blue}{C = \left( -4 , -5 \right)} $ and radius $ \color{blue}{ 2 }$ | 4 |
| 822 | Find general equation of a circle with a center at $ \color{blue}{C = \left( -7 , -8 \right)} $ and radius $ \color{blue}{ 8 }$ | 4 |
| 823 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( \frac{ 3 }{ 2 } , -\frac{ 1 }{ 2 } \right)} $ and radius $ \color{blue}{ 0 }$ | 4 |
| 824 | Find the center and radius of the circle $ x^2 + y^2 -4 x + 12 y -24 = 0 $. | 4 |
| 825 | Find the center and radius of the circle $ x^2 + y^2 +x + 6 y + 9 = 0 $. | 4 |
| 826 | Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 5 \right)^2 = 16 $. | 4 |
| 827 | Find the center and radius of the circle $ x^2 + \left( y + 2 \right)^2 = 4 $. | 4 |
| 828 | Find the center and radius of the circle $ \left( x + 7 \right)^2 + \left( y + 2 \right)^2 = 4 $. | 4 |
| 829 | Find the center and radius of the circle $ x^2 + y^2 -81 = 0 $. | 4 |
| 830 | Find the center and radius of the circle $ \left(x - 9 \right)^2 + \left( y - 5 \right)^2 = 0 $. | 4 |
| 831 | Find the center and radius of the circle $ x^2 + y^2 + 20 x -18 y + 145 = 0 $. | 4 |
| 832 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( -1 , 1 \right)} $ and radius $ \color{blue}{ 4 }$ | 4 |
| 833 | Find the center and radius of the circle $ x^2 + y^2 -x + 2 y +1 = 0 $. | 4 |
| 834 | Find the center and radius of the circle $ \left( x + 5 \right)^2 + y^2 = 0 $. | 4 |
| 835 | Find the center and radius of the circle $ x^2 + y^2 -6 x + 4 y + 9 = 0 $. | 4 |
| 836 | Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y - 3 \right)^2 = 4 $. | 4 |
| 837 | Find the center and radius of the circle $ x^2 + y^2 -12 x -10 y + 45 = 0 $. | 4 |
| 838 | Find the center and radius of the circle $ x^2 + y^2 -10 x -8 y + 25 = 0 $. | 4 |
| 839 | Find the center and radius of the circle $ \left( x + 2 \right)^2 + \left( y - 4 \right)^2 = 0 $. | 4 |
| 840 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 9 , 5 \right)} $ and radius $ \color{blue}{ \sqrt{ 111 } }$ | 4 |
| 841 | Find the center and radius of the circle $ \left(x - 3 \right)^2 + \left( y - 2 \right)^2 = 16 $. | 4 |
| 842 | Find the center and radius of the circle $ \left( x + 3 \right)^2 + \left( y + 4 \right)^2 = 9 $. | 4 |
| 843 | Find the center and radius of the circle $ \left(x - 5 \right)^2 + \left( y - 2 \right)^2 = 16 $. | 4 |
| 844 | Find the center and radius of the circle $ \left(x - 2 \right)^2 + \left( y - 4 \right)^2 = 25 $. | 4 |
| 845 | Find the center and radius of the circle $ x^2 + y^2 + 12 x -4 y -9 = 0 $. | 4 |
| 846 | Find the center and radius of the circle $ x^2 + y^2 + 4 x + 6 y -36 = 0 $. | 4 |
| 847 | Find standard equation of a circle with a center at $ \color{blue}{C = \left( 6 , -5 \right)} $ and radius $ \color{blue}{ 3 }$ | 4 |
| 848 | Find the center and radius of the circle $ \left(x - 8 \right)^2 + \left( y + 1 \right)^2 = 0 $. | 4 |
| 849 | Find the center and radius of the circle $ \left( x + 1 \right)^2 + \left( y - 2 \right)^2 = 9 $. | 4 |
| 850 | Find the center and radius of the circle $ x^2 + y^2 + 8 x + 5 y -2 = 0 $. | 4 |
