I need to know answers question 16.AB = 13 cm

From the given right triangle, we are able to use the following definition of Sin(A):
[tex]sin(A)=\frac{OppositeLeg}{Hypotenuse}[/tex]By substituting the given values, we have the following:
[tex]sin(A)=\frac{CB}{AB}=\frac{12}{13}[/tex]From the solution developed above, we are able to conclude that the answer to the proposed question is the option:
b. 12 / 13