$\"\"$

Use Law of sines to find $\"\"$ .

Write the proportion using Law of sines. $\"\"$ .

$\"\"$ (Write the proportion)

$\"\"$ (Substitute $\"\"$ ) $\"\"$ (Apply cross product property)

$\"\"$ (Divide each side by 18.2) $\"\"$

Solve for M.

M equals to inverse sine of $\"\"$ .

$\"\"$

$\"\"$ (Use a calculater) $\"\"$

The measure of M is approximately $\"\"$ .