Respuesta :

Cyl. vol.:  V = pi*r^2*h

Here,

V = 864 in^3 = pi*(12 in)^2*h

                     864 in^3
so that   h = --------------------- = 1.91 inches, or approx. 2 inches.
                      3.14*144 in^2
As, the formula for volume of cylinder is:
                                V= πr²h
                         (864in³)=π(12in)²h
                         h=6/π in
OR
by putting the value of π we get,
                         h=1.91in
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