Helen is putting a fence around her flower garden, which is in the shape of half of a circle and a rectangle. if the semicircle has a diameter of 7 feet and the rectangle has a width of 10 feet, how much fencing will helen need

see the picture in the attached figure

we know that

[perimeter of the flower garden]=[7+10+10]+[pi*7/2]----> 27+10.99---> 37.99 ft

the answer is
37.99 ft