Right triangle $\triangle{ABC}$ and its side lengths given in inches are shown below. What is $\sin{B}$ ?

$\dfrac{a}{b}$

$\dfrac{a}{c}$

$\dfrac{b}{a}$

$\dfrac{b}{c}$

$\dfrac{c}{a}$

Approach

Sine refers to the ratio of the opposite side to the hypotenuse.

$$ \sin{B} = \boxed{\frac{b}{c}} $$