Answer:
A
Step-by-step explanation:
13 + 4 = 17
so A
Side AB is Adj
Side BC is OPP
Side AC is HYP
Apply sine function.
[tex] \sin(x) = \frac{4}{13} [/tex]
Take the inverse of sine.
[tex] \sin {}^{ - 1} ( \frac{4}{13} ) = 17[/tex]
