+129899 Again...we have an irregular pentagon
Just like the other problem, the interior angles sum to 540°
The "missing" angle in the pentagon will be supplemental to A and will = 180 - A
So.....we have that
115 + 96 + 118 + 104 + ( 180 - A) = 540 simplify
613 - A = 540 add A to both sides, subtract 540 from both sides
73° = A
