Ok, the volume of a cylinder is given by the product of its base area and its height. The base of a cylinder is a circle which area is given by:
Where r is its radius and pi is approximately 3.1416
Then the area of the cylinder's base is:
Which is 12.566 sq in.
Finally if we multiply this area by the height of the cylinder we find its volume:
Therefore, rounding to the nearest tenths the volume of the cylinder is 251.3 cubic inches.