Question

CHECK MY ANSWER?
MEDAL!!!
For questions 11 and 12, find the volume of the cylinder in terms of pi.

Answer 1

52.8m^3
58.08pi m^3
127.78 pi m^3<----
29.04pi m^3

Answer 2

Do you know the formula of the volume of a cylinder?

Answer 3

v=pi r^2h

Answer 4

It is \(\rm \large V~=~\pi~r^2h\), correct.

We know that the radius (r) is 2.2 and the height (h) is 12, given in the picture..
Plug in the values into the formula first:

\(\rm \large V~=~\pi~2.2^2\times h\)

So now we know \(\rm \large V~=~\pi~2.2^2\times h\)

First we must do the exponents, so what is \(\rm 2.2^2\)?

Answer 5

Agh sorry. I didn't fill in the formula all he way..

It is \(\rm \large V~=~\pi~2.2^2\times 12\)

Still do the exponent first..

Answer 6

4.84

Answer 7

Correct! So plug in 4.84 where \(\rm 2/2^2\) was in the equation...
So now we have
\(\rm \large V~=~\pi~4.84\times 12\)

Next to the multiplication, so what is 4.84 x 12?

Answer 8

2.2^2*

I am soooo sorry! Today is Typo Day for me <_>

Answer 9

58.08

Answer 10

Correct, so now we have \(\rm \large V~=~\pi~58.08\), or

\(\rm \large V~=~58.08\pi\)

Answer 11

So that would be our answer

Answer 12

mind helping with another one

Answer 13

Yeah, sure :)

Answer 14

Don't mind my typos, btw ;(

Answer 15

h=6in r=3in

Answer 16

So you are trying to find the volume?

Answer 17

yes

Answer 18

Okay o get the volume, V = pi r^2*h

And plug in the information

Answer 19

All we know is the r and the h, so let's plug those in... V = pi 3^2*6


First do the exponent, 3^2, so what is 3^2?

Answer 20

54pi in^2
is the answer

Answer 21

Yeppers, because 3^2 = 9 and 9*6 = 54, so all we have left is 54pi