You have to use sin, cos, tan and find the length of the last side and other angles. Then you have to put an imaginary line down the middle and use the sin, cos, tan to find the height and then do 1/2 base times height.
We need to have some choices to give you the answer
Perimeter of figure= Perimeter of parallelogram(-one side) + Perimeter of semicircle
= 28 inches + 12.5 inches
= 40.5 inches
