From the problem, we have a rectangular and semic circle shape.
The total length of fence is the sum of the perimeters.
For the rectangular shape, the sum of its three sides is 15 + 20 + 20 = 55
The circumference of a semi circle is :
[tex]C=\pi r[/tex]
The radius is 7.5, and π = 3.14
The circumference will be :
[tex]\begin{gathered} C=7.5(3.14) \\ C=23.55 \end{gathered}[/tex]
The total perimeter is 55 + 23.55 = 78.55
ANSWER :
78.55 ft
