A baby pool is shaped like a short, wide cylinder and holds 52 ft3 of water. A medium pool measures 4 times the height and width of the baby pool. How much water will the medium pool hold? A. 1045 ft3 B. 2812 ft3 C. 2920 ft3 D. 3328 ft3

A baby pool is shaped like a short wide cylinder and holds 52 ft3 of water A medium pool measures 4 times the height and width of the baby pool How much water w class=

Respuesta :

Answer:

[tex]D.\ 3328\ ft^3[/tex]

Step-by-step explanation:

Given

Volume of baby pool = 52ft³

Required

Determine the volume of the medium pool

Volume of a cylinder is calculated as:

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

Hence, the volume of the baby pool is:

[tex]\pi r^2h = 52[/tex]

where r and h are the radius and height of the baby pool

Represent the height and radius of the medium pool as H and R

From the given parameters in the question

[tex]H = 4 * h[/tex] and [tex]R = 4 * r[/tex]

[tex]H = 4 h[/tex] and [tex]R = 4 r[/tex]

The volume of the medium cylinder is calculated as

[tex]Volume = \pi R^2H[/tex]

Substitute 4h for H and 4r for R

[tex]Volume = \pi (4r)^2(4h)[/tex]

Open bracket

[tex]Volume = \pi (4r) * (4r) * (4h)[/tex]

[tex]Volume = \pi 16r^2 * (4h)[/tex]

[tex]Volume = \pi 16r^2 * 4h[/tex]

Collect like terms

[tex]Volume = \pi r^2 * h * 4 * 16[/tex]

[tex]Volume = \pi r^2 h * 64[/tex]

Recall that [tex]\pi r^2h = 52[/tex]

So, the expression becomes

[tex]Volume = 52 * 64[/tex]

[tex]Volume = 3328[/tex]

Hence, the medium pool can hold [tex]3328ft^3[/tex] of water

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