Question

Gifts are packaged in cylinders. Each cylinder is 12 cm high with a diameter of 8 cm. Calculate the volume of each cylinder. Use 3 as a value for π

Answer 1

`576\text{ square cm}`

Explanation:

Since, the volume of a cylinder,

`V=\pi r^2 h`

Where,

r = radius,

h = height,

Here,

Diameter of the cylinder = 8 cm,

So, radius of the cylinder, r =
`(8)/(2)` = 4 cm,

h = 12 cm,

Thus, the volume of the cylinder,

`V=\pi (4)^2 (12) = 3* 16* 12= 576\text{ square cm}`

Answer 2

576cm³

Explanation:

The formula for the volumen of a cylinder is given by V = π*r²*h

We are told the diameter is 8cm (r=4cm) and the height is 12cm.

Also, to use 3 as π.

Replacing into the formula, we have:

V = 3*4²*12 = 3*16cm*12cm = 576cm³