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A grain silo is composed of a cylinder and a hemisphere. The diameter of both the cylinder and hemisphere is 4.4 meters. The height of the cylindrical portion is 6.2 meters.

What is the approximate total volume of the silo? Use 3.14 for \(\pi\) and round the answer to the nearest tenth of a cubic meter.

Answer :

To find the volume of the silo we can add the volumes of the cylinder and hemisphere on top of the cylinder. The formula for the volume of the cylinder is V = πr²h, where r is the radius and h is the height of the cylinder.

The formula for the volume of the hemisphere is V = 2/3πr³, where r is the radius of the hemisphere.

The radius of the hemisphere is half of the diameter which is 4.4/2 = 2.2 meters. The height of the cylinder is also 6.2 meters. So, the radius of the cylinder will be 4.4/2 = 2.2 meters. Therefore, the volume of the cylinder is:

Vcylinder = πr²h

= 3.14 × 2.2² × 6.2

≈ 93.50 cubic meters

The volume of the hemisphere is:

Vhemisphere = 2/3πr³

= 2/3 × 3.14 × (2.2)³

≈ 14.44 cubic meters

To get the total volume, we add the volume of the cylinder and hemisphere on top of it:

Vtotal ≈ 93.50 + 14.44

≈ 107.94 cubic meters

Therefore, the approximate total volume of the silo is 107.94 cubic meters.

To know more about hemisphere visit:

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