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help with gcse maths question

http://www.mathsgenie.co.uk/resources/predicted-2h-june2014.pdf question 12
Find the conversion between litres and cm^3
Multiply conversion by 1/2
Set that equal to pi*r^2*h (Vol of cylinder)
Set r=4 and solve for h :colondollar:
πr^2h = 0.5l
r = d/2
= 4cm
therefore π*4^2*h = 500cm^3
therefore h = 500cm^3/16π
h = 9.94
= 10cm
Reply 3
Avatar for shwansalah
shwansalah
OP
2
wtf i wasen't taught cubic conversions in my maths class., ill have to inform my teacher.
Reply 4
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Arieisit
3
Original post by shwansalah


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