Answer:
10 units
Step-by-step explanation:
Length of the radius of the circle will be equal to the distance between the center of the circle and the point through which it passes.
Therefore,
Length of radius
[tex] = \sqrt{(1 - 7)^{2} + {( - 3 - 5)}^{2} } \\ \\ \sqrt{ {( - 6)}^{2} + ( - 8)^{2} } \\ \\ = \sqrt{36 + 64} \\ \\ = \sqrt{100} \\ \\ = 10 \: units[/tex]
