will mark you brainliest once you get the answer correct!!

Answer:
16 + 2*pie
Step-by-step explanation:
perimeter of parallelogram : 4+8+4= 16
perimeter of a semicircle : 2*pie* r but it is semi circle so /2 radius is 4/2 which is 2 so 2*pie will give you the perimeter of your semicircle
perimeter of the shape 16 plus perimeter of the semicircle