Answer:
10
Step-by-step explanation:
By the property of intersecting secants outside of the circle.
[tex]AC \times BC = CE \times DC \\ \\AC \times 6 = 12 \times 5 \\ \\ AC = \frac{12 \times 5}{6} \\ \\AC = 2 \times 5 \\ \\ AC = 10[/tex]
Answer 10
hope it help i am only 11 ok
