8th grade

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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 -

    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?

  • Math -

    pl=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

  • 8th grade -

    bobpursley,cna you dumb iot down for me. thanks

  • 8th grade -

    bobpursley, 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

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