Respuesta :

2SevLev9

Answer:

The radius is 5

Step-by-step explanation:

Make a jank Pythagorean theorem and then simplify

12^2 + x^2 = (x+8)^2

144+ x^2 = (x+8)^2

144 + x^2 = x^2 +16x +64

80 = 16x

x= 5

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