The Solution.
Representing the problem in a diagram, we get
To find the length of the boundaries of the fence, we shall use the formula below:
[tex]\begin{gathered} \text{Length}=\frac{\theta}{360}\times2\pi r \\ \text{Where }\theta=110^o \\ \pi=3.14 \\ r=2130\text{ ft} \end{gathered}[/tex]Substituting these values in the formula, we get
[tex]\begin{gathered} \text{Length}=\frac{110}{360}\times2\times3.14\times2130 \\ \\ \text{ =}\frac{11\times3.14\times2130}{18}=4087.23\text{ fe}et \end{gathered}[/tex]We were told that each foot cost $21.
So, the cost of the fence is
[tex]\frac{4087.23}{21}=\text{ \$194.63}\approx\text{ \$190}[/tex]Therefore, the correct answer is $190
