irishmolly
What is the surface area of the cylinder? (Picture Provided)



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irishmolly
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dw:1343857272704:dw

irishmolly
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that is supposed to be a cylinder btw!

julianassange
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Ok, so make a surface map to help you:
ill draw it

julianassange
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dw:1343857362427:dw

julianassange
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That is the shape if you take it out, for example

irishmolly
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Ok

julianassange
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Wait, do u happen to have a textbook for this?

julianassange
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Because the equation for it is the way to do it.

irishmolly
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No, i wish i did

julianassange
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Gimme a minute

irishmolly
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do you know what the equation is to do it

irishmolly
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ok

julianassange
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Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h

irishmolly
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Okay, so let me try to do that on a calculator

julianassange
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So, if you know the order of operations, this is fairly easy.

irishmolly
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so 2 pi times 4 squared plus 2 pi times 4 times 15 ?

irishmolly
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i got 427

julianassange
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Wait... you said calculator, right?

julianassange
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Because when you do this this is supposed to be done by not calculator, but paper and pencil.

julianassange
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So, use the order of operations and you'll get the answer.

irishmolly
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ok, thanks!

julianassange
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No prob :D