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April 21, 2014

April 21, 2014

Posted by **brianna** on Sunday, December 14, 2008 at 11:22am.

the smaller cylinder has a radius of 4 centimeters, which is half as large as the radius of the larger cylinder. the volume of smaller cylinder =250 cubic cemtimeters.

what is the volume of the larger cylinder?

- Math -
**bobpursley**, Sunday, December 14, 2008 at 12:28pmradsmall/radiuslarge=heightsmall/heightlarge

volumesmall=250=PI*4^2(heighsmall)

volumelarge=?=PIradiuslarge^2*heightlarge

height small=250/16PI

Height large=?/64PI (radius large=8)

so put these into the proportion...

4/8=(250/16PI)/(?/64PI)

or

1/2=250*4/?

solve for?

- Math -
**brianna**, Sunday, December 14, 2008 at 2:01pmpl=3 &if i solve this problem in a proportion (which is what we've been working on in math) then what would be the point of trying to do the equation

v= pie*r^2*h?

im very confused

please help me with this problem

- Math -
- 8th grade -
**brianna**, Sunday, December 14, 2008 at 1:32pmbobpursley,cna you dumb iot down for me. thanks

- 8th grade -
**brianna**, Sunday, December 14, 2008 at 1:41pmbobpursley, i misspelled some words from my last response, i meant to say can you explain it a little better? because i still don't quiet get it.

thank you

- 8th grade -

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