$\"\"$

\

The angle is $\"\"$ .

\

$\"\"$

\

Apply formula: $\"\"$ .

\

$\"\"$

\

Substitute the values : $\"\"$ . $\"\"$

\

$\"\"$

\

$\"\"$ \ \

\

$\"\"$ .

\

$\"\"$

\

$\"\"$

\

Apply formula : $\"\"$ .

\

$\"\"$

\

Substitute the values : $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ \ \

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

Apply formula: $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ \ \

\

$\"\"$ .

\

$\"\"$

\

The exact values are $\"\"$ , $\"\"$ , and $\"\"$ . \ \