AP EAMCET202123 Aug 2021Evening ShiftMathematicsCircleActual
Suppose a circle passes through (2,2) and (9,9) and touches the X -axis at P . If O is the origin, then O P is equal to
Options
- A4
- B5
- C6
- D9
Correct answer
C. 6
Step-by-step solution
Since, the circle passes through A(2,2) and B(9,9) and it touches on X -axis at P . O P^2=O A O B ...(i) aligned & O A= 2^2+2^2 =2 2 & O B= 9^2+9^2 =9 2 aligned array ll & O P^2=2 2 9 2 =36 & O P=6 array