Question

A cylinder has a height of 1.2 cm and the following base.

Answer 1

Answer:

94.2 cubic mm

Step-by-step explanation:

The volume for a cylinder is

$V=\pi r^2h$

We can use 3.1415 for pi,

r = 5

h = 1.2

Filling in then:

$V=3.1415(5^2)(1.2)$

and

$V=3.1415(25)(1.2)$ so

$V=94.2mm^3$

Just multiply all those numbers together.

Answer 2

Answer:

$V=942\ mm^{3}$

Step-by-step explanation:

Hello

I think I can help you with this

the Volume of a cylinder is given by:

$V=\pi *radius^{2} *h$

in these exercises be careful with the units of measure, they must be the same units of length in this case mm

Step 1

convert 1.2 cm into mm

using a rule of three

1 cm ⇔ 10 mm

1.2 cm ⇔x mm?

$\frac{1\ cm}{10\ mm}=\frac{1.2 cm}{x}\\solve\ for\ x\\\\\frac{x*1\ cm}{10\ mm}=1.2 cm\\x=\frac{1.2\ cm*10\ mm}{1\ cm} \\x=12\ mm$

so, height is 12 mm

Step 2

put the values into the equation

Let

radius= 5 mm

height= 12 mm

$V=\pi *radius^{2} *h\\V=\pi *(5\ mm)^{2} *12\ mm\\V=\pi*300\ mm^{3}\\V=942.47\ mm^{3}$

Have a nice day