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A cylindrical rainwater tank is 1.5 m tall with a diameter of 1.4 m. What is the maximum volume of rainwater it can hold??


I need answer.. please help me.... please​

Respuesta :

To work out the volume of a prism, you multiply the area of cross-section by the height (or length).

So for a cylinder, you work out the area of the circle and then multiply it by the height.

Area of circle (or cross-section) = π × radius²

                                                = π × 0.7²

                                                = 0.49π   m²

Now to get the volume of the cylinder, you times this area of the cross-section by the height of the cylinder:

Volume = 0.49π × 1.5

            = 2.3 m³  (accurate to 2 decimal places)

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Answer:

The maximum volume of rainwater the cylinder can hold is:

2.3 m³

Cricetus

The maximum volume of rainwater will be "2.3 m³".

Volume of Cylinder:

Given values are:

Height = 1.5 m

Diameter = 1.4 m

The Area of circle will be:

= [tex]\pi\times radius^2[/tex]

= [tex]\pi\times 0.7^2[/tex]

= [tex]0.49 \pi \ m^2[/tex]

hence,

The volume of cylinder be:

= [tex]0.49 \pi\times 1.5[/tex]

= [tex]2.3 \ m^3[/tex]

Thus the answer above is correct.  

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