$\"\"$

\

The measures are $\"\"$ .

\

Apply law of cosines to determine angle A.

\

$\"\"$

\

(Substitute $\"\"$ )

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Apply inverse function.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Find C

\

Apply Law of sines.

\

$\"\"$

\

Substitute $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Apply Cross multiplication $\"\"$ then $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Divide each side by 8.

\

$\"\"$

\

$\"\"$

\

Apply inverse function.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

The sum of the angle measures of a triangle is $\"\"$ .

\

$\"\"$

\

Substitute $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Subtract 50 from each side.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

The angles of $\"\"$ , $\"\"$ and $\"\"$ .