Answer:

53.69 m

Step-by-step explanation:

We have,

Length of the rectangular region=17m

Breadth of the rectangular region=5m

Radius of the semicircular region=17/2m

Therefore, perimeter of the given shape

= 2×5+17+π×17/2

= 10+17+3.14×17/2

= 27+26.69

= 53.69 m