Q43 / 90 · JEE Main 2016 (03 Apr) · Mathematics
If one of the diameters of the circle, given by the equation, is a chord of a circle , whose centre is at , then the radius of is
- A
- B
- C
- Correct answerD
Solution
The centre of the given circle is and the radius is .

The distance between the centres and radius is . The triangle is a right angled triangle
Hence answer is
Hence, the correct answer is option: 'D'.