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The volume of a right circular cylinder can be approximated as follows:
Volume = h,
where ris the radius of the cylinder and his the height of the cylinder,
It is a constant that is roughly equal to 3.
Using the simple approximation above, calculate the volume of a right circular
cylinder with a radius of 2 meters and a height of 7 meters.
O A. 84 m3
OB. 12 m
O C. 42 m3

Respuesta :

pjwongmageo
B is the answer if I did it right

Answer:

A. [tex]84m^3[/tex]

Explanation:

The volume of a circular cylinder can be calculated by:

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

[tex]h[/tex] is the height and [tex]r[/tex] is the radius.

according to the problem [tex]\pi[/tex] is roughly equal to 3 (it is equal to 3.1416).

Also the problem asks for the volume of a cylinder with

[tex]r=2m[/tex]

and

[tex]h=7m[/tex]

Using the volume formula and [tex]\pi=3[/tex]:

[tex]V=h\pi r^2=(7m)(3)(2m)^2=(7m)(3)(4m^2)=(21m)(4m^2)=84m^3[/tex]

the volume is [tex]84m^3[/tex]

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