Answer:
27.85 feet
Explanation:
There might be a more advanced/simpler way to do this.
Perimeter of the squared end (3 of the 4 sides of the square) = 15 feet. Perimeter of the flat part of the rounded end is also = 5 feet.
So all we need is the arc. And they tell you it's a 1/4 circle. So it's 1/4 the circumference of the circle.
We know that the radius of the circle is 5 feet, because that's part of the square.
Circumference = 2(pi)(r)
C = (2)(3.14)(5)
C = 31.4
Divide that by 1/4 for the perimeter/circumference of that 1/4 circle = 7.85
15 + 5 + 7.85 = 27.85 feet