Question

The line 2x – y + 1 = 0 is a tangent to the circle at the point (2, 5) and the centre of the circle lies on x – 2y = 4. Then, the radius of the circle is:

(1) \(3\sqrt{5}\)

(2) \(5\sqrt{3}\)

(3) \(5\sqrt{4}\)

(4) \(4\sqrt{5}\)

Answer 1

Correct answer is (1)