The length of the tangent from the point $(4, 5)$ to the circle ${x^2} + {y^2} + 2x - 6y = 6$ is
The length of the tangent from the point $(4, 5)$ to the circle ${x^2} + {y^2} + 2x - 6y = 6$ is
- A
$\sqrt {13} $
- B
$\sqrt {38} $
- C
$2\sqrt 2 $
- D
$2\sqrt {13} $
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