Grain is stored in cylindrical structures called silos which is the best estimate for the volume of a silo with a diameter of 12.3 feet and a height of 25 feet

Volume of a cylinder = base x height

the base is the area of the circle at the bottom.

To find the area of a circle, you use:

A = πr²

where r is the radius of the circle.

radius is half of the diameter, so with a diameter of 12.3, (divide that by 2) the radius of the circle is 6.15 feet.

A = π (6.15) ²

A ≈ 118.82

Since we know the height is 25 feet, we can solve for the area of the cylinder.

Area of the cylinder = 118.82 x 25 = 2,970.57 feet cubed