To solve this problem, we have to compute the circumference of a circle of diameter:
[tex]d=840ft.[/tex]
Recall that the circumference of a circle is given by the following formula:
[tex]C=d\pi,[/tex]
where d is the diameter.
Therefore, the circumference of the reservoir is:
[tex]C=\frac{22}{7}*840ft=2640ft.[/tex]
Answer:
[tex]2640ft.[/tex]
