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    what's up guys
    im kinda stuck on this question i don't really understand it and in the answer what is even h stand for and what is 2pierh is for pleaaaase help and explain it to me
    thanx people
    and bless
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    ...What?

    Ah, I see. The question wasn't there when I looked.
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    h is the height of the cylinder
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    h - height
    2 pi r h = 2 x pi x radius x height = surface area of cylinder
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    (Original post by icapturethecastle)
    h - height
    2 pi r h = 2 x pi x radius x height = surface area of cylinder
    oh thanx also why do you times it by 2 theres only 1 circumfrence on the cylender right?
    but i get the rest like 2pie r 2 because theres 2 circles in the cylender but just the 2 pie r h why isit timesed by 2
    thanx for making it clearer
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    (Original post by ketchup)
    oh thanx also why do you times it by 2 theres only 1 circumfrence on the cylender right?
    but i get the rest like 2pie r 2 because theres 2 circles in the cylender but just the 2 pie r h why isit timesed by 2
    thanx for making it clearer
    it's just the formula for working out what the surface area is of the cylinder, 2\pirh gives you its surface area... you just plug in the height and radius...
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    (Original post by icapturethecastle)
    it's just the formula for working out what the surface area is of the cylinder, 2\pirh gives you its surface area... you just plug in the height and radius...
    thanx sooo much
 
 
 
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