Question

Can someone tell me the equation to find the volume of a circle? I forgot-_-

Answer 1

a circle is 2 dimensional and does not pertain to volume, which is 3 dimensional

Answer 2

the "area" of a circle is: pi r^2

Answer 3

my bad its a container... read the question wrong

Answer 4

if the container is a cylindar, then its base area, times height

Answer 5

if its a sphere ... a ball .... i believe we get to 4/3 pi r^3

Answer 6

ok think you could just help me out with the problem?

Answer 7

type up the problem and lets have a look at it

Answer 8

container 1 Radius 2 inches Volume 50.24 cubic inches
container 2 Radius 3 inches Volume ?


So i have to find the volume of container 2
heres my answer choices
113.04

169.56

254.34

75.36

Answer 9

Based off of container 1 my guess is D but want to be sure.

Answer 10

well, 32pi/3 is equal to about 33.51

so this doesnt seem to relate to a sphere

are there pictures to go by? similar shapes perhaps?

Answer 11

no thats why im so lost with this problem

Answer 12

it does say this though in the beginning "A company makes similar cylindrical containers" so i guess theyre cylindrical containers

Answer 13

or if its just a r to V ratio ...

2:50.24 relates to 1:25.12

3(1):3(25.12)

3:75.36

Answer 14

its not a ratio but that is probably the easiest way to solve it thanks for showing me that!

Answer 15

it still gives you the right answer so i think we could just use that... i just have to find the answer dont have to do it a certain way and show my work.

Answer 16

let assume its a cylindar then, and that radius refers to a circular base:

V = pi r^2 * h

50.24 = 4pi h
h = 50.24/4pi

V = 9pi * 50.24/4pi
= 9 * 50.24/4
= 113.04

Answer 17

so depending on the context of the problem, there are a few ways to try to approach it. but as is, its not very well defined to me

Answer 18

yeah i agree. Thanks for the help anyways!

Answer 19

can u helpme with my question now? http://openstudy.com/study#/updates/51c1c859e4b0bb0a4360320a