Answer:
[tex]1.57\textrm{ yd}[/tex]
Step-by-step explanation:
Given:
Diameter of the circle, [tex]D=18\textrm{ in}[/tex].
We need to convert the diameter in yards.
We know that, [tex]36\textrm{ in} = 1\textrm{ yd}[/tex]
So, [tex]1\textrm{ in} =\frac{1}{36}\textrm{ yd}[/tex]
Now, [tex]18\textrm{ in} =\frac{1}{36}\times 18=0.5\textrm{ yd}[/tex]
Circumference of a circle of diameter, [tex]D[/tex], is given as:
[tex]\textrm{Circumference}=\pi D[/tex]
Plug in 0.5 for [tex]D[/tex] and calculate the circumference. This gives,
[tex]\textrm{Circumference}=\pi \times 0.5=3.14\times 0.5=1.57\textrm{ yd}[/tex]
Therefore, the circumference of the given figure is [tex]1.57\textrm{ yd}[/tex].
