The measure of angle .
.
Find A,
\
(Apply Law of sines)
(Substitute
)

Apply Cross multiplication
then
.


Divide each side by 3.
\

Apply inverse function.
\

Now find the measure of the third angle.
\The sum of the angle measures of a triangle is
.

(Substitute
)

Subtract 115 from each side.
\
(Apply Law of sines)
(Substitute
)

Apply Cross multiplication
then
.

\

Divide each side by 0.9659.
\ 

The values are
,
, and
.