Posted by brianna on Sunday, December 14, 2008 at 11:22am.
2 cylinders are proportional
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 12:28pm
radsmall/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?

8th grade  brianna, Sunday, December 14, 2008 at 1:32pm
bobpursley,cna you dumb iot down for me. thanks
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