Answer:
You need to find the length of 3 sides so in this problem you would take the 2 long sides that are 10ft and the 1 side that is known that is 4ft and add them together. The perimeter of the rectangle is 24 ft. Next you would take the last side that is 4ft and divide by 2 and that would give you 2ft. You take the 2ft and multiply it by 3.14 for pi and your answer would be 6.28ft. Last you would take the perimeter of the semicircle which is 6.28ft and add it to the perimeter of the rectangle which is 24 ft and your answer would be 30.28 feet.
Step-by-step explanation:
