The solution to the problem is as follows:
Given: V = 83.74 in^3 ; h = 5 in
Solution:
V = 1/3 pi*r^2*h
V = 1/3 pi*1/4*d^2*h
sqrt(d) = sqrt (12V/pi*h)
d = sqrt(12(83.74)/(3.14)(5))
d = 8.6 in
Therefore, letter C 8 in.
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