Question 1203360
<br>
The radius of the cylinder and hemisphere is 15 ft.<br>
The volume of the hemisphere is<br>
{{{(2/3)(pi)(15^3)=2250 pi}}}<br>
So the volume of the cylinder is<br>
{{{11925pi-2250pi=9675pi}}}<br>
{{{(pi)(r^2)(h)=(pi)(225)(h)=9675pi}}}
{{{h=9675/225=43}}}<br>
The height of the cylinder is 43 feet.<br>
ANSWER: The height of the silo is 43+15 = 58 feet<br>