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bamfardo | 18:18 Tue 24th Jul 2007 | Education
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calculate the height of a cylinder of volume 150cm3 and radius 20mm
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Avatar Image jake-the-peg
Volume is pi times the square of the radius times the height.

so if you divide 150 by pi and by 20 squared you'll have your answer
12:28 Fri 27th Jul 2007
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jake the peg
no you won't !
the radius is 20 MILLIMETERS, the volume is 150 cm3.
Therefore,
height = vol /( pi x 2 x 2)
=150 / (4 x pi)
=11.9366 cm to 4 d.p.
13:34 Fri 27th Jul 2007
Avatar Image jake-the-peg
Oh yes missed the units sorry.

You stalking me nightmare? This chap's had no reply since Tuesday and suddenly two at once!

Or is it this "recent posts" dialog
14:15 Fri 27th Jul 2007

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