What is the volume of the item described?

A rocket in the shape of a cylinder with radius 6 m and height 16 m with a cone on top of radius 6 m and height 3 m.

Select the exact answer in terms of ​ π ​ and the approximate answer rounded to the nearest whole number.

2149 m³

612 π ​ m³

102​ π ​ m³

320 m³

1922 m³

684 π ​ m³

Respuesta :

Answer

612 π ​ m³

1922 m³

Explanation

The body of the rocket is a cylinder; to find its volume, we are going to use the formula for the volume of a cylinder:

[tex]V=\pi r^2h[/tex]

where

[tex]r[/tex] is the radius of the cylinder

[tex]h[/tex] is the height

We know from our problem that the radius of the cylinder is 6 m and its height is 16 m, so let's replace the values:

[tex]V=\pi (6m)^2(16m)[/tex]

[tex]V=\pi (36m^2)(16m)[/tex]

[tex]V=576\pi m^3[/tex]

[tex]V=1809m^3[/tex]

The volume of the cylinder is [tex]1810m^3[/tex]

To find the volume of the cone, we are going to use the formula:

[tex]V=\pi r^2\frac{h}{3}[/tex]

where

[tex]r[/tex] is the radius

[tex]h[/tex] is the height

We know form our problem that the radius of the cone is 6 m and its height is 3 m, so let't replace the values:

[tex]V=\pi (6m)^2(\frac{3m}{3} )[/tex]

[tex]V=\pi (36m^2)(1m)[/tex]

[tex]V=36\pi m^3[/tex]

[tex]V=113m^3[/tex]

Now, we just need to add the volumes in terms of [tex]\pi[/tex] and the volumes rounded to the nearest whole:

Volume of the item in terms of π = [tex]576\pi m^3+36\pi m^3=612\pi m^3[/tex]

Volume of the item rounded = [tex]1809m^3+113m^3=1922m^3[/tex]

Answer:

612 and 1922

Step-by-step explanation:

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