Respuesta :

The circumference of a circle is found using the formula:

                              [tex]C=2 \pi R[/tex], 

where R is the radius of the circle. So the circumference of our circle is 
 
                              [tex]C=2 \pi R\approx 2\cdot15\cdot 3.14=94.2[/tex] (ft).


The ratio of the arc length to the circumference is equal to the measure of the central angle to the complete angle. That is:

                              [tex]\displaystyle{ \frac{45^{\circ}}{360^{\circ}} = \frac{a.length}{94.2} [/tex].

[tex] \displaystyle{ \frac{1}{8}= \frac{a.length}{94.2} \rightarrow a.length= \frac{94.2}{8}= 11.775(ft)[/tex].


Answer: 11.8 (ft)
It would be 11.78 or 11.8 rounded