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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

User Aku
by
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2 Answers

4 votes

Answer:

612 and 1922

Explanation:

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User Gile
by
6.2k points
2 votes

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:


V=\pi r^2h

where


r is the radius of the cylinder


h 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:


V=\pi (6m)^2(16m)


V=\pi (36m^2)(16m)


V=576\pi m^3


V=1809m^3

The volume of the cylinder is
1810m^3

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


V=\pi r^2(h)/(3)

where


r is the radius


h 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:


V=\pi (6m)^2((3m)/(3) )


V=\pi (36m^2)(1m)


V=36\pi m^3


V=113m^3

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

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

Volume of the item rounded =
1809m^3+113m^3=1922m^3