Question

Grain silo cylindrical Diameter 15 ft Height 31 ftwhat is thrme volume?use the value 3.14 for pie round to the nearest whole number

Answer 1

5475 cubic ft

Explanation:

The volume of a cylinder is given by

`V=\pi r^2h`

where

r = radius of the base

h = height of the cylinder.

Now in our case,

r = 15 / 2 = 7.5 ft

h = 31ft

therefore, the volume is

`V=\pi(7.5)^2\cdot31`

using π = 3.14 gives

`V=(3.14)(7.5)^2\cdot31`

The right-hand side of the above equation simplifies to give

`V=5475.375`

rounding to the nearest whole number gives

`\boxed{V=5475.}`

Hence, the volume of the grain silo is 5475 cubic ft.